crustacés
| Nom | Type | Notoriété | Popularité |
|---|---|---|---|
| Alicella | Taxon | 16 | 3.3 |
| Alcyonomolgus | Taxon | 2 | 0.0 |
| Albuneidae | Taxon | 11 | 0.1 |
| Albunea | Taxon | 9 | 0.1 |
| Agostocarididae | Taxon | 5 | 0.0 |
| Agnaridae | Taxon | 10 | 0.5 |
| Afrograptidae | Taxon | 2 | 0.0 |
| Afrocyclops Pauliani | Taxon | 11 | 0.0 |
| Aethridae | Taxon | 15 | 0.4 |
| Actaeodes | Taxon | 7 | 0.1 |
| Acidopsidae | Taxon | 8 | 0.1 |
| Achelata | Taxon | 28 | 1.6 |
| Achaeus Spinosus | Taxon | 5 | 0.1 |
| Achaeus Japonicus | Taxon | 7 | 0.5 |
| Acasta Spongites | Taxon | 7 | 0.6 |
| Acasta | Taxon | 7 | 0.2 |
| Acartia (acartiura) Omorii | Taxon | 4 | 0.1 |
| Acartia (acartiura) Longiremis | Taxon | 7 | 0.0 |
| Acartia (acartiura) Clausi | Taxon | 8 | 0.0 |
| Acartia | Taxon | 8 | 0.0 |
| Acanthomolgus | Taxon | 5 | 0.0 |
| Acanthodiaptomus Pacificus | Taxon | 4 | 0.0 |
| Acanthodiaptomus | Taxon | 6 | 0.2 |
| Acanthocarpus | Taxon | 11 | 0.0 |
| Acanthephyridae | Taxon | 4 | 0.4 |
| Acanthaxius | Taxon | 8 | 0.2 |