CYLICHNA. 517 



C. coNULus, Desliayes. 



Small, conoid-cylindrical ; crown distinctly perforated ; no 

 volutions visible externally. 



Plate CXIV. c. %. 7. 



Bulla comilus, Deshayes, Coq. foss. des Env. de Par. p. 41, pi. 5, f. 34-3G 

 (fide Wood). 

 „ „ Searles Wood, Crag Mollusca, p. 173, pi. 21, f. 2, a— c. 



Mr. Jeffreys has forwarded to us a single recent example 

 of this hitherto solely fossil species, which was dredged 

 at Deal Yoe in Zetland. It most closely approaches both 

 the preceding and succeeding species, and is chiefly dis- 

 tinguished from them by its peculiarity of form, which 

 tapers almost uniformly, with a slight central retusion, 

 from a swollen anterior region. The crown is distinctly, 

 though narrowly, pierced, the inner lip not being reflected 

 over it as in nitidula ; the narrow aperture rises with 

 much prominence in an almost perpendicular direction 

 above, and is somewhat bulbiform below. There is a 

 slight indentation behind the pillar, which last is tolerably 

 broad and subpliciform. The distant characteristic spiral 

 striuloe, which were visible towards the lip, were replaced 

 upon the ventral surface by superficial tawny lines, evi- 

 dently appertaining to the individual, not essential to the 

 species. The specimen measured a fifth of an inch in 

 length, and the tenth of an inch in breadth ; fossil ex- 

 amples attain to a quarter of an inch long, preserving the 

 same ratio of breadth. 



