| Name | Links | |
|---|---|---|
| FishBase Classification "The classification schema above genus level is limited in FishBase to classes, orders, families and subfamilies ranks (the latter not yet displayed)... | ||
| Xenopus Anatomical Ontology (XAO) "The Xenopus Anatomical Ontology describes Xenopus anatomy and development as a controlled vocabulary of terms, organized in a graphical structure... |