Region:

Valid: Yes

Type Designation: Mermod 1947; Kohn, 1968

Type: Lectotype

Type Repository: MHNG

Catalogue Number of Type: 1107/16

Type Size: 31.5 x 17 mm.

Locality Designation: Costa, 1994

Type Locality: N. of Nellies Point, South Lake Worth, Florida; 46 m

Synonyms:

• C. agassizii Dall, 1886.  
• C. bermudensis Clench, 1942.  
• C. cretaceus Kiener, 1847.  
• C. elventinus Duclos, 1833.
• C. iansa Petuch, 1979.  
• C. karinae Nowell-Usticke, 1968.  
• C. lymani Clench, 1942.  
• C. rosaceus Sowerby ii, 1834.