- Hippocampus abdominalis — likely to require a high donation
- Hippocampus alatus — likely to require a high donation
- Hippocampus algiricus — likely to require an intermediate donation
- Hippocampus angustus — likely to require an intermediate donation
- Hippocampus barbouri — likely to require an intermediate donation
- Hippocampus bargibanti — likely to require a high donation
- Hippocampus biocellatus — likely to require an intermediate donation
- Hippocampus borboniensis — likely to require an intermediate donation
- Hippocampus breviceps — likely to require a high donation
- Hippocampus camelopardalis — likely to require an intermediate donation
- Hippocampus capensis — likely to require an intermediate donation
- Hippocampus casscsio — likely to require a high donation
- Hippocampus colemani — likely to require a high donation
- Hippocampus comes — likely to require an intermediate donation
- Hippocampus coronatus — likely to require an intermediate donation
- Hippocampus curvicuspis — likely to require a high donation
- Hippocampus debelius — likely to require a high donation
- Hippocampus denise — likely to require an intermediate donation
- Hippocampus erectus — likely to require an intermediate donation
- Hippocampus fisheri — likely to require an intermediate donation
- Hippocampus fuscus — likely to require an intermediate donation
- Hippocampus grandiceps — likely to require a high donation
- Hippocampus guttulatus — likely to require an intermediate donation
- Hippocampus haema — likely to require a high donation
- Hippocampus hendriki — likely to require a high donation
- Hippocampus hilonis — likely to require a high donation
- Hippocampus hippocampus — likely to require an intermediate donation
- Hippocampus histrix — likely to require an intermediate donation
- Hippocampus ingens — likely to require an intermediate donation
- Hippocampus japapigu — likely to require a high donation
- Hippocampus japonicus — likely to require a high donation
- Hippocampus jayakari — likely to require an intermediate donation
- Hippocampus jugumus — likely to require an intermediate donation
- Hippocampus kelloggi — likely to require an intermediate donation
- Hippocampus kuda — likely to require an intermediate donation
- Hippocampus lichtensteinii — likely to require a high donation
- Hippocampus minotaur — likely to require a high donation
- Hippocampus mohnikei — likely to require an intermediate donation
- Hippocampus montebelloensis — likely to require a high donation
- Hippocampus multispinus — likely to require a high donation
- Hippocampus nuda — likely to require a high donation
- Hippocampus paradoxus — likely to require a high donation
- Hippocampus patagonicus — likely to require an intermediate donation
- Hippocampus pontohi — likely to require a high donation
- Hippocampus procerus — likely to require a high donation
- Hippocampus pusillus — likely to require a high donation
- Hippocampus queenslandicus — likely to require an intermediate donation
- Hippocampus ramulosus — likely to require a high donation
- Hippocampus reidi — likely to require an intermediate donation
- Hippocampus satomiae — likely to require a high donation
- Hippocampus semispinosus — likely to require a high donation
- Hippocampus severnsi — likely to require a high donation
- Hippocampus sindonis — likely to require an intermediate donation
- Hippocampus spinosissimus — likely to require an intermediate donation
- Hippocampus subelongatus — likely to require an intermediate donation
- Hippocampus trimaculatus — likely to require an intermediate donation
- Hippocampus tyro — likely to require a high donation
- Hippocampus waleananus — likely to require a high donation
- Hippocampus whitei — likely to require an intermediate donation
- Hippocampus zebra — likely to require a high donation
- Hippocampus zosterae — likely to require an intermediate donation