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ANCILLARIA. 

 Voluta ampla. — Linn. 

 Sowerby's Genera, No. 3, pi. 3. 

 In appearance this genus resembles that of Oliva, 

 between which and the G. Terebellum, it seems to 

 form an intermediate link ; but the whorls of the spire 

 never being separated at the upper part by a suture or 

 groove distinguishes them from the former ; and the 

 callous oblique band at the base of the columella, from 

 the latter, as well as from some species of Buccina, not 

 very ventricose, which they might otherwise be mista- 

 ken for. Shell oblong, cylindrical ; spire short, very 

 slightly notched at the base ; aperture elongated and 

 wide, but not extending the whole length of the shell, 

 and rather wider at the lower part; columella not 

 plaited, and with a callosity at the base. Sowerby, 

 in his Genera of Shells, has preserved Lamarck's ori- 

 ginal name for this genus (Ancilla). 



Ancillaria cinnamomea Ancillaria marginata 



ventricosa Candida. 



[And five fossil species.] 



u2 



