Genus Gastranella A. E. Verrill, 1872

(3-4-4-0-26-4-1-3-0-0-0-0-0)
Ref. Vokes, 1980 p 179
[see as it applies to Subgenus (Petrocolaria) under Genus Petricola]

tumida A. E. Verrill, 1872
(3-4-4-0-26-4-1-3-0-1-0-0-0)
[=Petricola (Petricolaria) pholadiformis (J. B. P. A. de Lamarck, 1818)]
Ref. Abbott, 1974 p 535