|Molluscan ResearchISSN 1323-5818|
international journal of the Malacological
Society of Australasia and
the Society for the Study of Molluscan Diversity published by Magnolia Press
Molluscan Research 30(1):
25-28; published 31 Mar. 2010
Copyright © The Malacological Society of Australasia & the Society for the Study of Molluscan Diversity
Inverse life positions of three species in the genus Cadella (Bivalvia: Tellinidae)
SUGURU UJINO¹& AKIHIKO MATSUKUMA²
¹Department of Earth and Planetary Sciences, Graduate School of Sciences, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka,812-8581, Japan. Email firstname.lastname@example.org
²Kyushu University Museum, address as above.
Bivalves have particular life orientations for each species. Species of Tellinidae and Semelidae burrow in sediment and are orientated with their commissure plane nearly horizontal and almost always rest on their left side. However, three species of the tellinid genus Cadella, which have the commissure plane nearly horizontal, lie on their right side. It is suggested that this reversed orientation in Cadella is an inversion of the normal left side orientation and appears to be the first example of behavioural inversion in bivalves.
Keywords: Infaunal bivalves, Cadella, Tellinidae, burrowing behaviour
Full article (PDF; 100 KB)
|Copyright © 2005-2010 Magnolia Press||Published : 31 Mar. 2010|