Conical Trashline Orbweaver 
Conicochernes brevispinosus 
Copper sun jumper 
Coriarachne brunneipes 
Corinnomma severum 
Cosmobunus granarius 
Cosmophasis gemmans 
Cosmophasis lami 
Cosmophasis micarioides 
Cosmophasis thalassina 
Cosmophasis umbratica 
Cosmophasis valerie 
Cosmophasis valerieae 
Costa Rica Red Tarantula 
Costa Rican red legged tarantula 
Costa Rican Zebra Tarantula 
Cross Orbweaver 
Crouching Long-jawed Spider 
Cryptachaea veruculata 
Ctenus medius 
Cucumber Green Spider 
Cupboard spider 
Curlyhair tarantula 
Cyclosa bulla