| Region: |
| Fossil: Miocene-Pliocene |
| Type: Neotype |
| Type Repository: MCNM |
| Catalogue Number of Type: 50 |
| Type Locality: Piémont, Italy. |
Subspecies:
- C. chelyconoides Sacco, 1893.
- C. concavespirata Sacco, 1893.
- C. dertocanaliculata Sacco, 1893.
- C. dertomamillata Sacco, 1893.
- C. dertosulculellata Sacco, 1893.
- C. exlineata Sacco, 1893.
-
C. girondicus Peyrot, 1930.
- C. pervindobonensis Sacco, 1893.
- C. pusilla Mylius, 1891.
- C. sbilmus Gregorio, 1885.
- C. sgosus Gregorio, 1885.
- C. supramamillata Sacco, 1893.