169 



also, in the eighth volume of his Manual of Conchology, published in 1886 

 (page 130), writes as follows: — "Some authors have contended that the 

 European C. unguiformis is a different species from our C. plana ; the com- 

 parison of large suites of both will demonstrate their identity to any one." 



Crepidula convexa, Say. 



Crepidula convexa, Say (1822) ; et auct. 



Sable Island (Willis). The form of this shell is said to be " due to its 

 attachment on the crustacean Eupagurus longicarpus and the gastropod 

 Ilyanassa ohsoleta " (Tryon). 



Crucibulum striatum (Say). 



Calyptroea {Dispotcea) striata. Say (1836). 



Crucibulum [Dispotcea) striatum, H. and A. Adams (1858). 



Grand Manan (Stimpson) ; Bay of Fundy, common, low-water mark to 30 

 fathoms (Verrill) ; L'Etang Harbour, Charlotte Co., N.B., in 7 to 10 fathoms, 

 very abundant (Ganong); Annapolis Basin, N.S., "not abundant" (Ver- 

 kruzen). 



Family Rissoidce. 

 CiNGULA MINUTA (Totten). 



Turbo minutus, Totten (1834). 

 Cingula minuta, Gould (1841). 

 Littorinella minuta, Stimpson (1865). 

 Rissoa minuta, Gould (1870). 

 Hi/drobia minuta, G. O. Sars (1878). 



At or a little below low-water mark, or under stones between tides, 

 throughout the entire region. The species is known to range southward to 

 New Jersey, and northward to Fox Harbour, Lewis Sound, Labrador, where, 

 according to Miss Bush, one dead shell was dredged by the Stearns expedi- 

 tion in 1882. 



Cingula globulus (Moller). 



Eissoa globulus, Moller (1842). 

 Cingula globulus, Verrill (1879). 



One dead specimen of this shell was dredged by the writer in 1872, five 

 miles and a quarter to the E.S.E. of Bona venture Island, in 60 fathoms, 

 tough, sandy mud. 



