Common Leaf-beetle Jumping Spider 
Common net-casting spider 
Common Patterned Ant-mimic Ground Spider 
Common Puerto Rican Brown Tarantula 
Common rain spider 
Common Sheetweb Spider 
Common White-Cheeked Jumping Spider 
Common White-flanked Water Spider 
Common White-tail Spider 
Conical Trashline Orbweaver 
Copper sun jumper 
Coriarachne brunneipes 
Corinnomma severum 
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