23 



PSEUDOLIVA, Swainson. 



Gen. Char. vShell thick, ventricose ; spire short; 

 aperture large, longitudinal, oval, with a broad, 

 short canal at the base and a narrow canal at the 

 opposite extremity ; outer lip with a tooth on its 

 sharp edge corresponding to a groove around 

 the outside of the lower part of the whorl ; 

 inner lip thick, tumid at the upper part. 



A GENUS of shells nearly related to Oliva and Eburna, 

 and of which the typical recent species is the Buccinum 

 plumbeum of Chemnitz. Its most obvious character is 

 the furrow upon the lower part of the whorl, termina- 

 ting with a tooth on the edge of the lip, as in Ancillaria ; 

 a ffenus to which some of the fossil species approach, in 

 having the inner lip spread over a part of the spire. 



PSEUDOLIVA obtusa. 



TAB. DCXXII. 



Spec. Char. Obovate, smooth, with a few striae 

 below the furrow ; spire short, small, partly 

 concealed by the expansion of the inner lip ; 



