A new species of Lucinoma (Bivalvia: Lucinoidea) from a methane gas seep off the southwest coast of Chile

Submitted by admin on Sun, 20/11/2011 18:55
ANNA M. HOLMES
P. GRAHAM OLIVER
JAVIER SELLANES
(2005)
Volume
38
Part
6
Page from
673

A new species of Lucinoma is described from a previously unknown methane seep off Concepción, southern Chilean coast. Comparisons have been made with all known Lucinoma species, especially L. lamellata (= L. antarctica?), L. galathea, L. annulata, L. aequizonatus and L. heroica.
Many of the new specimens are gerontic individuals - perceived as having slower or irregular growth, resulting in uneven shell thickening, height to length ratio reversal and sculptural irregularity.

Keywords
Chile
Lucinoma
methane seep.