Genus Trigonocoelia P.-H. Nyst & Galeotti, 1835

(3-7-3-0-4-2-0-46-0-0-0-0-0)
[=Limopsis A. Sassi, 1827]
Ref. Vaught, 1989 p 115
Syn. Trigonocaelia W. H. Dall, 1908;
Trigonocelia G. B. Sowerby, 1846;
Trigonocelius F. Paetel, 1875
[=Limopsis A. Sassi, 1827]
Ref. Vokes, 1980 p 20