A new species of Calma Alder & Hancock, 1855 (Gastropoda: Nudibranchia) with a review of the genus

Calado, Gonçalo; Urgorry, Victoriano

http://hdl.handle.net/10400.12/7412

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Journal of Molluscan Studies, Volume 68, Issue 4 311-317.pdf		393.95 KB	Adobe PDF	Download

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Authors

Calado, Gonçalo

Urgorry, Victoriano

Abstract(s)

This paper presents the description of a new species of the genus Calma (Alder & Hancock, 1855). To date only one valid species, Calma glaucoides (Alder & Hancock, 1854), has been assigned to this genus, which feeds exclusively upon eggs of littoral teleost fishes. New morphological and ecological data, and review of the literature on the species attributed to this genus, lead us to conclude that there are two distinct species previously put together under the same specific name. Calma gobioophaga new species is described based upon consistent morphological differences, such as the diameter and position of the eyes, the size of the propodial tentacles, and the size of the metanefridium. Whereas Calma gobioophaga feeds on spawn of Gobius niger, Calma glaucoides feeds on eggs of Lepadogaster lepadogaster, Lepadogaster purpurea, Lepadogaster candollei, Parablennius gattorugine, and Parablennius pilicornis.