Region:

Fossil: Eocene

Valid: Yes

Type Designation: Kohn, 1992

Type: Lectotype

Type Repository: BMNH

Catalogue Number of Type: GG10112

Type Size: 24 x 10 mm

Type Locality: Hordwell, Hampshire, England.

Subspecies:

• C. bhagothorensis Vredenburg, 1925.
• C. seminuda Edwards, 1856.
• C. sindiensis Vredenburg, 1925.