- calyx
- capitate
- capitulum
- carapace
- carina
- carina penis
- carinate
- carpophagous
- cauda
- caudal
- caulis
- cephalad
- cercus
- cervix
- cestum
- chaetosemata
- chaetotaxy
- chorda
- chorion
- cilia
- ciliate
- cingulum
- clasper
- clavate
- clypeus
- coecum penis
- collar
- commissure
- concave
- connate
- convex
- corema
- cornuate
- cornutus
- coronal suture
- corpus bursae
- costa
- costal
- costal fold
- costal hook
- coxa
- cranial
- cranium
- cremaster
- cremastral
- crepuscular
- crescentic
- crest
- crochets
- CuA
- CuA 1
- CuA 2
- cubital pecten
- cubital vein
- cucullus
- cuneate
- CuP
- cupreous