Alvania cimicoides (Forbes, 1844)

Gofas, Serge, 2007, Rissoidae (Mollusca: Gastropoda) from northeast Atlantic seamounts, Journal of Natural History 41 (13 - 16), pp. 779-885 : 791

Alvania cimicoides (Forbes, 1844)

Material examined Gorringe— Seamount 1 sta. DW15, 1 spm. and 1 sh. (3.86× 2.20 mm), 3 jv. sh.; DW16, 27

sh. (2.70×1.60 to 4.16× 2.26 mm); CP30, 1 sh. (jv.). Josephine— Seamount 1 sta. DW38, 5 sh. (3.16×1.86 to 3.60× 2.20 mm); DW43, 3 sh. (2.84×1.80 to 3.26×2.00 mm). Seine— Seamount 1 sta. DE72, 2 sh. Ampère— Seamount 1 sta. DE95, 1 sh. (jv.), DE98, 10 sh. (3.02×1.76 to 3.20× 1.86 mm).

Remarks

This is a common species in the upper bathyal of the European mainland, and has been well illustrated in Bouchet and Warén (1993, p 624–627). The multispiral protoconch denotes a planktotrophic development and facilitates the occurrence of the species on all four Lusitanian seamounts.