New species of Thyasiridae (Bivalvia) from chemosynthetic communities in the Atlantic Ocean

Submitted by admin on Sun, 20/11/2011 18:55
P. GRAHAM OLIVER
ANNA M. HOLMES
(2006)
Volume
39
Part
2
Page from
175

A new genus and two new species of Thyasiridae are described from deep-water chemosynthetic communities in the Atlantic Ocean. Spinaxinus sentosus n. gen., n. sp. is distinguished by both shell shape and periostracal characters and bears little resemblance to other known thyasirids. It was collected from the organic cargo of the sunken ship, “Francois Vieljeux” and
this remains the only record of this species. Thyasira southwardae n. sp. was collected from the Logatchev hydrothermal site and
is morphologically similar to T. sarsi, T. oleophila and T. methanophila all known to be associated with chemosynthetic sites.

Keywords
Thyasiridae
new genus
new species
Atlantic Ocean
Deep-sea
Chemosynthetic communities.