“Genus ARTHRITICA Finlay, 1927
Type (OD) Kellia bifurca Webster, 1908
Shell small, quadrately-ovate, with an external ligament and an internal resilium. Surface smooth or with minute concentric wrinkles. Hinge with a small cardinal and two laterals in each valve. A feature of the type of the genus, developed only in the adult, is the presence of two callused limy patches, developed internally on the inner side of the adductor scars. The genus seems to be peculiar to New Zealand, where it ranges from the Otaian lower Miocene to Recent. Two of the species are commensal, but the type species appears to be free living.
(Powell, 1979: 391)
Arthritica is a genus of bivalves belonging to the family Lasaeidae.[1]
The species of this genus are found in Australia and New Zealand.[1]
Species:[1]
Arthritica is a genus of bivalves belonging to the family Lasaeidae.
The species of this genus are found in Australia and New Zealand.
Species:
Arthritica ambotruncata Laws, 1944 Arthritica bifurca (Webster, 1908) Arthritica crassiformis Powell, 1933 Arthritica crassitesta Laws, 1950 Arthritica dispar Laws, 1940 Arthritica elongata Laws, 1936 Arthritica finlayi Laws, 1950 Arthritica helmsi (Hedley, 1915) Arthritica hulmei Ponder, 1965 Arthritica japonica Lützen & Takahashi, 2003 Arthritica perfragilis Laws, 1950 Arthritica reikoae (Suzuki & Kosuge, 2010) Arthritica semen (Menke, 1843) Arthritica whitechurchi (Turton, 1932)
