The Marine Species Identification Portal accomodates many keys, either in the form of dichotomous or multiple-entry 'matrix' keys. All keys are listed below, subdivided into five main geographic regions. We have also included links to several external keys on the web, which are flagged as such.
| ||
 |
World Copepods: key Euphausiids: key, matrix Lobsters: key Mammals: key Molluscs (pelagic): key 1, key 2, matrix Planarians: matrix Sea urchins: key [external link] Sharks: key Turbellaria: key |
|
| ||
 |
North-East Atlantic and Mediterranean Fishes: key Sponges: key, matrix North Sea |
|
| ||
 |
South Atlantic (all planktonic) Acantharia: key Cephalopoda (young stages): key Chaetognatha: key Cnidaria: key Crustaceans: key Foraminifera: matrix Nemertina: key Polychaetes: key Radiolaria Phaeodaria: key Siphonophorae: matrix Tintinnoinea: key |
|
| ||
 |
Caribbean Anemones: key Crustaceans: key Echinoderms: key Fishes: key Molluscs: key Polychaetes: key Soft corals: key Sponges: key Stony corals: key Zoanthids: key |
|
| ||
 |
Indo-Malayan Corals: key Japan North Australia |
|
| ||