| iap, inner apophysis; oap, outer apophysis. *The seven-segmented antennule of C. gravihiatus (Shen & Sung, 1963) requires confirmation. | |||||
| P1 | P2 | P3 | P4 | P5 | |
| EXP | 0;1;0,1-2,2 | 0;1;1,2,2 | 0;1;1-2,2,2 | 0;0-1;0-2,2,2 | ♀3-5 |
| ♂3-4 | |||||
| ENP | 0-1;1,1-2,1 | 0-1;0-2,1-2,0-1 | ♀0;0-2,1-2,0-1 | 0;0,2,0 | ♀5-6 (7*) |
| ♂dimorphic: | or | ♂3 | |||
| 0-1;iap;0,2,0 | 0,2,0 | ||||
| or | |||||
| 0-1;iap,2,0 | |||||
| or | |||||
| 0;iap,1,oap | |||||