animaux
| Nom | Type | Notoriété | Popularité |
|---|---|---|---|
| Clathrina Lacunosa | Taxon | 7 | 0.1 |
| Clathrinida | Taxon | 15 | 0.4 |
| Clathrinidae | Taxon | 13 | 0.2 |
| Clavarctus Falculus | Taxon | 7 | 0.1 |
| Cliona | Taxon | 16 | 0.7 |
| Cliona Celata | Taxon | 15 | 1.4 |
| Cliona Patera | Taxon | 17 | 0.2 |
| Cliona Viridis | Taxon | 11 | 0.5 |
| Clionaida | Taxon | 9 | 0.4 |
| Clionaidae | Taxon | 15 | 1.2 |
| Clivinini | Taxon | 5 | 0.0 |
| Clyte (insecte) | Concept | 1 | 0.7 |
| Cnidaria | Taxon | 91 | 109.1 |
| Cobra Cracheur | Concept | 21 | 20.4 |
| Coelas | Taxon | 1 | 0.1 |
| Coelomata | Taxon | 9 | 12.4 |
| Coeloplana | Taxon | 10 | 0.5 |
| Coelosphaeridae | Taxon | 10 | 0.2 |
| Coendou Speratus | Taxon | 10 | 0.3 |
| Coliforme | Concept | 21 | 106.5 |
| Collyridini | Taxon | 4 | 0.0 |
| Collyris Elegans | Taxon | 3 | 0.0 |
| Colobe | Concept | 2 | 13.8 |
| Columbia | Taxon | 1 | 0.5 |
| Condor | Concept | 36 | 80.5 |
| Conocyema | Taxon | 7 | 0.2 |
| Conocyemidae | Taxon | 8 | 0.5 |
| Conure | Concept | 7 | 18.8 |
| Conus Potiguar | Taxon | 1 | 0.0 |
| Conus Quasidaucus | Taxon | 1 | 0.0 |
| Conus Tangae | Taxon | 1 | 0.0 |
| Conus Venustulus | Taxon | 1 | 0.0 |
| Coquette | Concept | 1 | 1.1 |
| Coralliophaga Elegans | Taxon | 1 | 0.1 |
| Corallistes Isabela | Taxon | 9 | 0.0 |
| Corallistidae | Taxon | 10 | 0.0 |
| Corbitella | Taxon | 10 | 0.0 |
| Corbitella Elegans | Taxon | 8 | 0.0 |
| Cornechiniscus | Taxon | 8 | 0.1 |
| Coronarctidae | Taxon | 8 | 0.2 |
| Coronarctus | Taxon | 7 | 0.0 |
| Coronarctus Disparilis | Taxon | 6 | 0.0 |
| Coronarctus Fastigatus | Taxon | 6 | 0.0 |
| Coronarctus Laubieri | Taxon | 6 | 0.0 |
| Coronarctus Mexicus | Taxon | 2 | 0.5 |
| Coronarctus Stylisetus | Taxon | 6 | 0.0 |
| Coronarctus Tenellus | Taxon | 6 | 0.0 |
| Coronarctus Verrucatus | Taxon | 3 | 0.2 |
| Corvidae | Taxon | 2 | 4.2 |
| Coscinaraea | Taxon | 8 | 0.4 |