Bulla umbilicataMontagu, 1803, p. 222-223, pl. 7, fig. 4 [Basis of the current name] Type Locality: Falmouth Harbor Maximum Reported Size: 3 mm References: Montagu (1803) M Comments: Non Röding, 1798; validated by ICZN Opinion 549, which suppressed the older name. Tentatively reported from New England by T. E. Thompson (1988). Combining Genera: Cylichna Cylichnina
Partial List of References
Montagu, G. 1803. Testacea Britannica [iii] + xxxix + 606 + [4]. J. S. Hollis: Romsey. [True date: post Sept 1.]