- Niphargus sodalis — likely to require a low level of donation
- Niphargus sohrevardensis — likely to require a low level of donation
- Niphargus somesensis — likely to require a low level of donation
- Niphargus spasenijae — likely to require a low level of donation
- Niphargus speziae — likely to require a low level of donation
- Niphargus sphagnicolus — likely to require a low level of donation
- Niphargus spinulifemur — likely to require a low level of donation
- Niphargus spiritus — likely to require a low level of donation
- Niphargus spoeckeri — likely to require a low level of donation
- Niphargus stadleri — likely to require a low level of donation
- Niphargus stankoi — likely to require a low level of donation
- Niphargus stebbingi — likely to require a low level of donation
- Niphargus stefanellii — likely to require a low level of donation
- Niphargus stenopus — likely to require a low level of donation
- Niphargus steueri — likely to require a low level of donation
- Niphargus stochi — likely to require a low level of donation
- Niphargus stygius — likely to require a low level of donation
- Niphargus stygocharis — likely to require a low level of donation
- Niphargus styx — likely to require a low level of donation
- Niphargus submersus — likely to require a low level of donation
- Niphargus subtypicus — likely to require a low level of donation
- Niphargus talikadzei — likely to require a low level of donation
- Niphargus tamaninii — likely to require a low level of donation
- Niphargus tatrensis — likely to require a low level of donation
- Niphargus tauri — likely to require a low level of donation
- Niphargus tauricus — likely to require a low level of donation
- Niphargus tenuicaudatus — likely to require a low level of donation
- Niphargus thermalis — likely to require a low level of donation
- Niphargus thienemanni — likely to require a low level of donation
- Niphargus thuringius — likely to require a low level of donation
- Niphargus timavi — likely to require a low level of donation
- Niphargus tomori — likely to require a low level of donation
- Niphargus tonywhitteni — likely to require a low level of donation
- Niphargus toplicensis — likely to require a low level of donation
- Niphargus transitivus — likely to require a low level of donation
- Niphargus transsylvanicus — likely to require a low level of donation
- Niphargus tridentinus — likely to require a low level of donation
- Niphargus trullipes — likely to require a low level of donation
- Niphargus turcicus — likely to require a low level of donation
- Niphargus vadimi — likely to require a low level of donation
- Niphargus valachicus — likely to require a low level of donation
- Niphargus valvasori — likely to require a low level of donation
- Niphargus vandeli — likely to require a low level of donation
- Niphargus variabilis — likely to require a low level of donation
- Niphargus vejdovskyi — likely to require a low level of donation
- Niphargus velesensis — likely to require a low level of donation
- Niphargus versluysi — likely to require a low level of donation
- Niphargus vinodolensis — likely to require a low level of donation
- Niphargus virei — likely to require a low level of donation
- Niphargus vjeternicensis — likely to require a low level of donation
- Niphargus vjetrenicensis kusceri — likely to require a low level of donation
- Niphargus vlkanovi — likely to require a low level of donation
- Niphargus vodnensis — likely to require a low level of donation
- Niphargus vornatscheri — likely to require a low level of donation
- Niphargus vranjinae — likely to require a low level of donation
- Niphargus vulgaris — likely to require a low level of donation
- Niphargus wexfordensis — likely to require a low level of donation
- Niphargus wolfi — likely to require a low level of donation
- Niphargus zagorae — likely to require a low level of donation
- Niphargus zarosiensis — likely to require a low level of donation
- Niphargus zavalanus — likely to require a low level of donation
- Niphargus zorae — likely to require a low level of donation
- Niphargus zvalanus — likely to require a low level of donation
- Nippochelura brevicauda — likely to require a low level of donation
- Nippognathiopsis petila — likely to require a low level of donation
- Nippoleucon enoshimensis — likely to require a low level of donation
- Nippoleucon hinumensis — likely to require a low level of donation
- Nippoleucon projectus — likely to require a low level of donation
- Nipponasellus aioii — likely to require a low level of donation
- Nipponasellus hubrichti — likely to require a low level of donation
- Nipponasellus kagaensis — likely to require a low level of donation
- Nipponasellus takefuensis — likely to require a low level of donation
- Nipponasellus tonensis — likely to require a low level of donation
- Nipponbathynella uozumii — likely to require a low level of donation
- Nipponerythrops typicus — likely to require a low level of donation
- Nipponomysis brevicauda — likely to require a low level of donation
- Nipponomysis calcarata — likely to require a low level of donation
- Nipponomysis eriopedes — likely to require a low level of donation
- Nipponomysis fusca — likely to require a low level of donation
- Nipponomysis imparis — likely to require a low level of donation
- Nipponomysis lingvura — likely to require a low level of donation
- Nipponomysis longipes — likely to require a low level of donation
- Nipponomysis minuta — likely to require a low level of donation
- Nipponomysis misakiensis — likely to require a low level of donation
- Nipponomysis ornata — likely to require a low level of donation
- Nipponomysis patula — likely to require a low level of donation
- Nipponomysis perminuta — likely to require a low level of donation
- Nipponomysis quadrispinosa — likely to require a low level of donation
- Nipponomysis sandoi — likely to require a low level of donation
- Nipponomysis sinensis — likely to require a low level of donation
- Nipponomysis surugensis — likely to require a low level of donation
- Nipponomysis takitai — likely to require a low level of donation
- Nipponomysis tenuiculus — likely to require a low level of donation
- Nipponomysis toriumii — likely to require a low level of donation
- Nippononethes cornutus — likely to require an intermediate donation
- Nippononethes kiiensis — likely to require an intermediate donation
- Nippononethes kuramotoi — likely to require an intermediate donation
- Nippononethes nishikawai — likely to require an intermediate donation
- Nippononethes uenoi — likely to require an intermediate donation
- Nippononethes unidentatus — likely to require an intermediate donation
- Nipponorchestia curvatus — likely to require a low level of donation
- Nipponorchestia nudiramus — likely to require a low level of donation
- Nippontonia ashmoreiensis — likely to require a low level of donation
- Nippontonia ashmoriensis — likely to require a low level of donation
- Nippontonia christellae — likely to require a low level of donation
- Nippontonia minirostris — likely to require a low level of donation
- Nippopisella nagatai — likely to require a low level of donation
- Noarograpsus lobulatus — likely to require a low level of donation
- Nobiliella cornigera — likely to require an intermediate donation
- Nobiliella jousseaumei — likely to require an intermediate donation
- Nobiliella margaritata — likely to require an intermediate donation
- Nobilum histrio — likely to require a low level of donation
- Noculacia africana — likely to require a low level of donation
- Noculacia australiensis — likely to require a low level of donation
- Noculacia bullata — likely to require a low level of donation
- Nodolambrus nodosus — likely to require a low level of donation
- Nodotergum bicarinatum — likely to require a low level of donation
- Nonala holderi — likely to require a low level of donation
- Norcapensis mandibulis — likely to require a low level of donation
- Norileca borealis — likely to require an intermediate donation
- Norileca indica — likely to require an intermediate donation
- Norileca triangulata — likely to require an intermediate donation
- Normanion abyssi — likely to require a low level of donation
- Normanion amblyops — likely to require a low level of donation
- Normanion chevreuxi — likely to require a low level of donation
- Normanion hipposideros — likely to require a low level of donation
- Normanion qaudrimanus — likely to require a low level of donation
- Normanion quadrimanus — likely to require a low level of donation
- Normanion ruffoi — likely to require a low level of donation
- Normanion sarsi — likely to require a low level of donation
- Normanion whoi — likely to require a low level of donation
- Normjonesia danieli — likely to require a low level of donation
- Notacanthomysis hodgarti — likely to require a low level of donation
- Notacanthomysis laticauda — likely to require a low level of donation
- Notalpheus imarpe — likely to require a low level of donation
- Notamphisopus benhami — likely to require a low level of donation
- Notamphisopus dunedinensis — likely to require a low level of donation
- Notamphisopus flavius — likely to require a low level of donation
- Notamphisopus kirkii — likely to require a low level of donation
- Notamphisopus littoralis — likely to require a low level of donation
- Notamphisopus percevali — likely to require a low level of donation
- Notanthura barnardi — likely to require a low level of donation
- Notanthura caeca — likely to require a low level of donation
- Notanthura liouvillei — likely to require a low level of donation
- Notanthura maroccana — likely to require a low level of donation
- Notiax bicauda — likely to require a low level of donation
- Notiax brachyophthalma — likely to require a low level of donation
- Notiax brachyophthlama — likely to require a low level of donation
- Notiax santarita — likely to require a low level of donation
- Notiodromia australis — likely to require an intermediate donation
- Notiodromia novaezelandica — likely to require an intermediate donation
- Notobathynella chiltoni — likely to require a low level of donation
- Notobathynella hineoneae — likely to require a low level of donation
- Notobathynella longipes — likely to require a low level of donation
- Notobathynella octocamura — likely to require a low level of donation
- Notobathynella pentatrichion — likely to require a low level of donation
- Notocrangon antarcticus — likely to require a low level of donation
- Notoediceros tasmaniensis — likely to require a low level of donation
- Notolopas brasiliensis — likely to require an intermediate donation
- Notolopas lamellatus — likely to require an intermediate donation
- Notolopas mexicanus — likely to require an intermediate donation
- Notomithrax allani — likely to require an intermediate donation
- Notomithrax angustifrons — likely to require an intermediate donation
- Notomithrax minor — likely to require an intermediate donation
- Notomithrax peronii — likely to require an intermediate donation
- Notomithrax spinosus — likely to require an intermediate donation
- Notomithrax ursus — likely to require an intermediate donation
- Notomysis australiensis — likely to require a low level of donation
- Notoniscus australis — likely to require an intermediate donation
- Notoniscus chiltoni — likely to require an intermediate donation
- Notoniscus fernandezi — likely to require an intermediate donation
- Notoniscus helmsi — likely to require an intermediate donation
- Notoniscus secundus — likely to require an intermediate donation
- Notoniscus tasmanicus — likely to require an intermediate donation
- Notoniscus tertius — likely to require an intermediate donation
- Notonyx angulatus — likely to require a low level of donation
- Notonyx castroi — likely to require a low level of donation
- Notonyx falcatus — likely to require a low level of donation
- Notonyx gigacarcinicus — likely to require a low level of donation
- Notonyx guinotae — likely to require a low level of donation
- Notonyx kumi — likely to require a low level of donation
- Notonyx latus — likely to require a low level of donation
- Notonyx musuppocenta — likely to require a low level of donation
- Notonyx nitidus — likely to require a low level of donation
- Notonyx rayneri — likely to require a low level of donation
- Notonyx sagittifer — likely to require a low level of donation
- Notonyx vitreus — likely to require a low level of donation
- Notopais beddardi — likely to require a low level of donation
- Notopais echinatus — likely to require a low level of donation
- Notopais euaxos — likely to require a low level of donation
- Notopais magnifica — likely to require a low level of donation
- Notopais minya — likely to require a low level of donation
- Notopais quadrispinosa — likely to require a low level of donation
- Notopais spicatus — likely to require a low level of donation
- Notopais spinosa — likely to require a low level of donation
- Notopais zealandica — likely to require a low level of donation
- Notopandalus magnoculus — likely to require a low level of donation
- Notophryxus clypeatus — likely to require a low level of donation
- Notophryxus globularis — likely to require a low level of donation
- Notophryxus lateralis — likely to require a low level of donation
- Notophryxus lobatus — likely to require a low level of donation
- Notophryxus lobus — likely to require a low level of donation
- Notophryxus longicaudatus — likely to require a low level of donation
- Notophryxus ocellatus — likely to require a low level of donation
- Notophryxus ovalis — likely to require a low level of donation
- Notophryxus ovoides — likely to require a low level of donation
- Notopoides exiguus — likely to require an intermediate donation
- Notopoides latus — likely to require an intermediate donation
- Notopoides pflugervillensis — likely to require an intermediate donation
- Notopoides verbeeki — likely to require an intermediate donation
- Notopoma africana — likely to require a low level of donation
- Notopoma argentina — likely to require a low level of donation
- Notopoma cidaridis — likely to require a low level of donation
- Notopoma crassicornis — likely to require a low level of donation
- Notopoma fallohidea — likely to require a low level of donation
- Notopoma fluminense — likely to require a low level of donation
- Notopoma harfoota — likely to require a low level of donation
- Notopoma lowryi — likely to require a low level of donation
- Notopoma lukini — likely to require a low level of donation
- Notopoma moorea — likely to require a low level of donation
- Notopoma oppositus — likely to require a low level of donation
- Notopoma sismithi — likely to require a low level of donation
- Notopoma stoddartae — likely to require a low level of donation
- Notopoma stoora — likely to require a low level of donation
- Notopoma teresae — likely to require a low level of donation
- Notopontonia platycheles — likely to require a low level of donation
- Notoprotella cornuta — likely to require a low level of donation
- Notoprotella tasmaniensis — likely to require a low level of donation
- Notoprotomima smithi — likely to require a low level of donation
- Notopus beyrichi — likely to require an intermediate donation
- Notopus dorsipes — likely to require an intermediate donation
- Notopus minutus — likely to require an intermediate donation
- Notorchestia australis — likely to require a low level of donation
- Notorchestia naturaliste — likely to require a low level of donation
- Notorchestia quadrimana — likely to require a low level of donation
- Notosceles bournei — likely to require an intermediate donation
- Notosceles chimmonis — likely to require an intermediate donation
- Notosceles ecuadorensis — likely to require an intermediate donation
- Notosceles pepeke — likely to require an intermediate donation
- Notosceles serratifrons — likely to require an intermediate donation
- Notosceles viaderi — likely to require an intermediate donation
- Notostomus auriculatus — likely to require a low level of donation
- Notostomus cretaceus — likely to require a low level of donation
- Notostomus crosnieri — likely to require a low level of donation
- Notostomus distirus — likely to require a low level of donation
- Notostomus elegans — likely to require a low level of donation
- Notostomus gibbosus — likely to require a low level of donation
- Notostomus japonicus — likely to require a low level of donation
- Notostomus micyclus — likely to require a low level of donation
- Notostomus mollis — likely to require a low level of donation
- Notostomus murrayi — likely to require a low level of donation
- Notostomus robustus — likely to require a low level of donation
- Notostomus sparsidenticulatus — likely to require a low level of donation
- Nototanais antarcticus — likely to require a low level of donation
- Nototanais dimorphus — likely to require a low level of donation
- Nototanoides ohtsukai — likely to require a low level of donation
- Nototanoides trifurcatus — likely to require a low level of donation
- Nototropis brevitarsus — likely to require a low level of donation
- Nototropis comes — likely to require a low level of donation
- Nototropis dentatus — likely to require a low level of donation
- Nototropis falcatus — likely to require a low level of donation
- Nototropis granulosus — likely to require a low level of donation
- Nototropis guttatus — likely to require a low level of donation
- Nototropis homocheir — likely to require a low level of donation
- Nototropis homochir — likely to require a low level of donation
- Nototropis massiliensis — likely to require a low level of donation
- Nototropis megalops — likely to require a low level of donation
- Nototropis melanops — likely to require a low level of donation
- Nototropis minikoi — likely to require a low level of donation
- Nototropis nordlandicus — likely to require a low level of donation
- Nototropis reductus — likely to require a low level of donation
- Nototropis serratus — likely to require a low level of donation
- Nototropis smitti — likely to require a low level of donation
- Nototropis swammerdamei — likely to require a low level of donation
- Nototropis taupo — likely to require a low level of donation
- Nototropis tulearensis — likely to require a low level of donation
- Nototropis urocarinatus — likely to require a low level of donation
- Nototropis vedlomensis — likely to require a low level of donation
- Notoxenoides abyssi — likely to require a low level of donation
- Notoxenoides acalama — likely to require a low level of donation
- Notoxenoides dentata — likely to require a low level of donation
- Notoxenoides setosa — likely to require a low level of donation
- Notoxenoides vemae — likely to require a low level of donation
- Notoxenus spinifer — likely to require a low level of donation
- Nouvelia natalensis — likely to require a low level of donation
- Nouvelia nigeriensis — likely to require a low level of donation
- Nouvelia valdiviae — likely to require a low level of donation
- Novactaea bella — likely to require a low level of donation
- Novactaea michaelseni — likely to require a low level of donation
- Novactaea modesta — likely to require a low level of donation
- Novactaea pulchella — likely to require a low level of donation
- Novamundoniscus adhara — likely to require an intermediate donation
- Novamundoniscus altamirensis — likely to require an intermediate donation
- Novamundoniscus dissimilis — likely to require an intermediate donation
- Novamundoniscus gracilis — likely to require an intermediate donation
- Novamundoniscus macrophthalmus — likely to require an intermediate donation
- Novamundoniscus marcuzzii — likely to require an intermediate donation
- Novamundoniscus persimilis — likely to require an intermediate donation
- Novamundoniscus setosus — likely to require an intermediate donation
- Novamundoniscus singularis — likely to require an intermediate donation
- Novamundoniscus vandeli — likely to require an intermediate donation
- Novorostrum decorocrus — likely to require a low level of donation
- Novorostrum indicum — likely to require a low level of donation
- Novorostrum phuketense — likely to require a low level of donation
- Novorostrum securiger — likely to require a low level of donation
- Nowrarcturus jamesi — likely to require a low level of donation
- Nuberis areolaticola — likely to require a low level of donation
- Nubigidiella nubica — likely to require a low level of donation
- Nubigidiella theresiae — likely to require a low level of donation
- Nucia baripadensis — likely to require an intermediate donation
- Nucia borneoensis — likely to require an intermediate donation
- Nucia bouvieri — likely to require an intermediate donation
- Nucia calculoides — likely to require an intermediate donation
- Nucia coxi — likely to require an intermediate donation
- Nucia fennemai — likely to require an intermediate donation
- Nucia ingens — likely to require an intermediate donation
- Nucia miliaris — likely to require an intermediate donation
- Nucia platyspinosa — likely to require an intermediate donation
- Nucia pulchella — likely to require an intermediate donation
- Nucia rosea — likely to require an intermediate donation
- Nucia speciosa — likely to require an intermediate donation
- Nucia tuberculosa — likely to require an intermediate donation
- Nucilobus bericus — likely to require an intermediate donation
- Nucilobus symmetricus — likely to require an intermediate donation
- Nuciops modestus — likely to require an intermediate donation
- Numbakulla pii — likely to require a low level of donation
- Numbakulla pygmaeus — likely to require a low level of donation
- Numbakulla srilankensis — likely to require a low level of donation
- Nupalirus chani — likely to require a low level of donation
- Nupalirus japonicus — likely to require a low level of donation
- Nupalirus vericeli — likely to require a low level of donation
- Nurina poulteri — likely to require a low level of donation
- Nursia alata — likely to require an intermediate donation
- Nursia blandfordi — likely to require an intermediate donation
- Nursia dimorpha — likely to require an intermediate donation
- Nursia elegans — likely to require an intermediate donation
- Nursia guinotae — likely to require an intermediate donation
- Nursia hamipleopoda — likely to require an intermediate donation
- Nursia japonica — likely to require an intermediate donation
- Nursia lamellata — likely to require an intermediate donation
- Nursia lar — likely to require an intermediate donation
- Nursia mimetica — likely to require an intermediate donation
- Nursia minor — likely to require an intermediate donation
- Nursia nasuta — likely to require an intermediate donation
- Nursia persica — likely to require an intermediate donation
- Nursia phylloides — likely to require an intermediate donation
- Nursia plicata — likely to require an intermediate donation
- Nursia rhomboidalis — likely to require an intermediate donation
- Nursia sexangulata — likely to require an intermediate donation
- Nursia sinuata — likely to require an intermediate donation
- Nursia tohae — likely to require an intermediate donation
- Nursia trilobata — likely to require an intermediate donation
- Nursia weberi — likely to require an intermediate donation
- Nursilia dentata — likely to require an intermediate donation
- Nursilia sinica — likely to require an intermediate donation
- Nursilia tonsor — likely to require an intermediate donation
- Nuuanu amikai — likely to require a low level of donation
- Nuuanu beatricis — likely to require a low level of donation
- Nuuanu castellana — likely to require a low level of donation
- Nuuanu copillius — likely to require a low level of donation
- Nuuanu curvata — likely to require a low level of donation
- Nuuanu garciai — likely to require a low level of donation
- Nuuanu hanamurai — likely to require a low level of donation
- Nuuanu jaumei — likely to require a low level of donation
- Nuuanu kata — likely to require a low level of donation
- Nuuanu meringannee — likely to require a low level of donation
- Nuuanu mokari — likely to require a low level of donation
- Nuuanu muelleri — likely to require a low level of donation
- Nuuanu numbadi — likely to require a low level of donation
- Nuuanu paracyclodactyla — likely to require a low level of donation
- Nuuanu quintalana — likely to require a low level of donation
- Nuuanu rectimana — likely to require a low level of donation
- Nuuanu stuckeyorum — likely to require a low level of donation
- Nuuanu titaseyi — likely to require a low level of donation
- Nuuanu utwe — likely to require a low level of donation
- Nyctiphanes australis — likely to require an intermediate donation
- Nyctiphanes capensis — likely to require an intermediate donation
- Nyctiphanes couchii — likely to require an intermediate donation
- Nyctiphanes simplex — likely to require an intermediate donation
- Nyctobadistes hamatus — likely to require a low level of donation
- Nyctoporea sukaczewi — likely to require a low level of donation
- Nykteripteryx rostrata — likely to require a low level of donation
- Nymphodora fletcheri — likely to require a low level of donation
- Oahutanais makalii — likely to require a low level of donation
- Obesogammarus acuminatus — likely to require a low level of donation
- Obesogammarus boeoticus — likely to require a low level of donation
- Obesogammarus crassus — likely to require a low level of donation
- Obesogammarus mediodanubialis — likely to require a low level of donation
- Obesogammarus obesus — likely to require a low level of donation
- Obesogammarus platycheir — likely to require a low level of donation
- Obesutanais depilator — likely to require a low level of donation
- Obesutanais sigridae — likely to require a low level of donation
- Obscurapseudes graciloides — likely to require a low level of donation
- Ocaste japonica — likely to require a low level of donation
- Occulthusa halimun — likely to require an intermediate donation
- Ochetodillo sulcatus — likely to require an intermediate donation
- Ochlesis alii — likely to require a low level of donation
- Ochlesis carinatus — likely to require a low level of donation
- Ochlesis caroleoninae — likely to require a low level of donation
- Ochlesis eridundi — likely to require a low level of donation
- Ochlesis innocens — likely to require a low level of donation
- Ochlesis lenticulosus — likely to require a low level of donation
- Ochlesis levetzowi — likely to require a low level of donation
- Ochlesis morgani — likely to require a low level of donation
- Ochlesodius spinicornis — likely to require a low level of donation
- Ochtholambrus excavatus — likely to require a low level of donation
- Ochtholambrus pulchellus — likely to require a low level of donation
- Ochtholambrus stimpsoni — likely to require a low level of donation
- Ocosingo borlus — likely to require a low level of donation
- Ocosingo fenwicki — likely to require a low level of donation
- Ocosingo kussakini — likely to require a low level of donation
- Ocosingo yatala — likely to require a low level of donation
- Octobathynella peelensis — likely to require a low level of donation
- Octoeurax acaresprora — likely to require a low level of donation
- Octomana hadromischa — likely to require a low level of donation
- Octopupilla felix — likely to require a low level of donation
- Oculophryxus bicaulis — likely to require a low level of donation
- Oculophryxus bicaulus — likely to require a low level of donation
- Ocypode africana — likely to require a low level of donation
- Ocypode brevicornis — likely to require a low level of donation
- Ocypode ceratophthalmus — likely to require a low level of donation
- Ocypode convexa — likely to require a low level of donation
- Ocypode cordimana — likely to require a low level of donation
- Ocypode cursor — likely to require a low level of donation
- Ocypode fabricii — likely to require a low level of donation
- Ocypode gaudichaudi — likely to require a low level of donation
- Ocypode gaudichaudii — likely to require a low level of donation
- Ocypode incerta — likely to require a low level of donation
- Ocypode italica — likely to require a low level of donation
- Ocypode jousseaumei — likely to require a low level of donation
- Ocypode kuhlii — likely to require a low level of donation
- Ocypode longicornuta — likely to require a low level of donation
- Ocypode macrocera — likely to require a low level of donation
- Ocypode madagascariensis — likely to require a low level of donation
- Ocypode mortoni — likely to require a low level of donation
- Ocypode nobilii — likely to require a low level of donation
- Ocypode occidentalis — likely to require a low level of donation
- Ocypode pallidula — likely to require a low level of donation
- Ocypode pauliani — likely to require a low level of donation
- Ocypode platytarsis — likely to require a low level of donation
- Ocypode pygoides — likely to require a low level of donation
- Ocypode rotundata — likely to require a low level of donation
- Ocypode ryderi — likely to require a low level of donation
- Ocypode saratan — likely to require a low level of donation
- Ocypode sinensis — likely to require a low level of donation
- Ocypode stimpsoni — likely to require a low level of donation
- Ocypode vericoncava — likely to require a low level of donation
- Odhnea acutidens — likely to require a low level of donation
- Odhnea echinus — likely to require a low level of donation
- Odhneria echinus — likely to require a low level of donation
- Odiomaris estuarius — likely to require a low level of donation
- Odiomaris pilosus — likely to require a low level of donation
- Odius carinatus — likely to require a low level of donation
- Odius cassigerus — likely to require a low level of donation
- Odius oclairi — likely to require a low level of donation
- Odius polarsterni — likely to require a low level of donation
- Odontodactylus brevirostris — likely to require an intermediate donation
- Odontodactylus cultrifer — likely to require an intermediate donation
- Odontodactylus hanseni — likely to require an intermediate donation
- Odontodactylus hansenii — likely to require an intermediate donation
- Odontodactylus havanensis — likely to require an intermediate donation
- Odontodactylus hawaiiensis — likely to require an intermediate donation
- Odontodactylus japonicus — likely to require an intermediate donation
- Odontodactylus latirostris — likely to require an intermediate donation
- Odontogammarus bekmanae — likely to require a low level of donation
- Odontogammarus brevipes — likely to require a low level of donation
- Odontogammarus caeculus — likely to require a low level of donation
- Odontogammarus calcaratus — likely to require a low level of donation
- Odontogammarus demianowiczi — likely to require a low level of donation
- Odontogammarus improvisus — likely to require a low level of donation
- Odontogammarus korotnewi — likely to require a low level of donation
- Odontogammarus margaritaceus — likely to require a low level of donation
- Odontogammarus pulcherrimus — likely to require a low level of donation
- Odontonia bagginsi — likely to require a low level of donation
- Odontonia compacta — likely to require a low level of donation
- Odontonia katoi — likely to require a low level of donation
- Odontonia maldivensis — likely to require a low level of donation
- Odontonia plurellicola — likely to require a low level of donation
- Odontonia rufopunctata — likely to require a low level of donation
- Odontonia seychellensis — likely to require a low level of donation
- Odontonia sibogae — likely to require a low level of donation
- Odontonia simplicipes — likely to require a low level of donation
- Odontoplax chacei — likely to require a low level of donation
- Odontothelphusa apicpac — likely to require an intermediate donation
- Odontothelphusa lacandona — likely to require an intermediate donation
- Odontothelphusa lacanjaensis — likely to require an intermediate donation
- Odontothelphusa maxillipes — likely to require an intermediate donation
- Odontothelphusa monodontis — likely to require an intermediate donation
- Odontothelphusa palenquensis — likely to require an intermediate donation
- Odontothelphusa toninae — likely to require an intermediate donation
- Odontozona addaia — likely to require a low level of donation
- Odontozona anaphorae — likely to require a low level of donation
- Odontozona arbur — likely to require a low level of donation
- Odontozona crinoidicola — likely to require a low level of donation
- Odontozona edwardsi — likely to require a low level of donation
- Odontozona edyli — likely to require a low level of donation
- Odontozona ensifera — likely to require a low level of donation
- Odontozona fasciata — likely to require a low level of donation
- Odontozona foresti — likely to require a low level of donation
- Odontozona joegoyi — likely to require a low level of donation