Subgenus (Truncacila) U. S. Grant & H. R. Gale, 1931

(3-6-1-0-2-3-0-1-3-0-0-0-0)
Ref. Abbott, 1974 p 411
Bernard, 1983 p 9
[see also as Genus]

castrensis (R. B. Hinds, 1843) [T]
(3-6-1-0-2-3-0-1-3-1-0-0-0)
Castrensis Nut Clam, Divaricate Nut Clam, Divaricate Nutclam
Ref. Abbott, 1974 p 411 d
Abbott & Dance, 1982 p 289 c
Amer. Fish. Soc., 1988 p 21
Syn. Acila (Acila) empirensis H. V. Howe, 1922;
Nucula (Nucula) castrensis R. B. Hinds, 1843;
Nucula (Nucula) divaricata T. A. Conrad, 1848, not R. B. Hinds, 1843, not A. Valenciennes in A. Petit-Thouars, 1846;
Nucula (Nucula) lyallii W. Baird, 1863
Ref. Bernard, 1983 p 9