CERION, GROUP V. 207 



varying, 23, 25, 33, 37 on the penult, whorl of several specimens. 

 The cord and depression defining the base in the typical form are 

 obsolete, but the base is finely striated, not ribbed, and sometimes, 

 as in the original of fig. 34, the group of spiral striae persists. This 

 form occurs at Gibara. 



C. INCRASSATUM (Sowerby). PI. 28, fig. 35. 



" Shell obese, cylindrical, slightly truncated, bluish ; ribs rather 

 oblique, distant, smooth. Aperture auriform, flexuous ; margin whit- 

 ish, very thick ; outer lip flexuous above, inner lip with two strong 

 folds. It resembles P. proteus, but its chief peculiarity is a much 

 thickened and flexuous margin " (Sowb.). 



Length 37^, diam. 15 mill, (from fig.). 



Cuba (type in British Museum). 



Pupa incrassata SOWERBT, Conch. Icon., xx, pi. 1, f. 6. P. tum- 

 ida SOWB., MS., olim. Cerion incrassatum P. and V., Proc. A. N. 

 S., 1896, p. 319. 



The type-figure of this species is copied in my fig. 35, and the 

 original description is given above. I have not identified the species 

 with certainty, but some specimens of C. torrei ornatum approach it, 

 though they are smaller, with a less developed axial lamella, and 

 without the bend in the outer lip, believed by Sowerby to be charac- 

 teristic of his species. 



C. TORREI k Blanes' P. and V. PI. 28, figs. 39, 40. 



Shell cylindrical, obese, strong, rimate and perforate, the lower 

 two or three whorls of approximately equal diameter, those above 

 forming a rather short cone with sides diverging at an angle of 85 

 to 90. Whorls 10-11, the earliest 1-2^ white or corneous, several 

 following finely and sharply striated, the remaining whorls nearly 

 smooth ; last whorl ascending in front, somewhat tapering below, 

 and generally striated at the base. Brown, marbled with very irreg- 

 ular stripes and dots of white. Aperture short, showing a small 

 short parietal lamella and a small axial lamella ; peristome white, 

 thickened and convex, reflexed and recurved, continuous, the pari- 

 etal margin more or less calloused. 



Alt. 23^, greatest diam. 13, length of aperture 11 mill. 



Alt. 28, greatest diam. 12^, length of aperture 11 mill. 



Alt. 24, greatest diam. 11^, length of aperture 10 mill. 



Port of Vita, Cuba (Francisco E. Blanes). 



