261 



point ; of five flattened whorls of which the upper three 

 are smooth, the rest longitudinally marked with nume- 

 rous fine ribs ; suture deep, aperture a fourth of the 

 whole length : ovate, the peritreme ending about the 

 middle of the inner side in a prominent plait running 

 into the interior 0,04. ..0,13. Aberdeen. 



CINGULA PULCHRA Johnston in Edin Phil. J. 19. 

 Conical, white, glossy, with two rows of oblong reddish 

 brown spots on the whorls which are six in number, 

 spirally striated, rounded and well defined : aperture 

 roundish, narrowed above, with even margins and a 

 slight perforation behind the pillar. |. Rare. 



C. (RISSOA) MURIATIC A Macg. Ab. p. 148. 

 TURBO ULV<E Pen. CYCLOSTOMA ACUTUM Drap. t. 

 I./. 23. PALUDINA M. Lam. P. ACUTA FLp. 315. 

 Oblong-turreted, rather thin, transparent, somewhat cor- 

 neous, pale yellowish or greenish grey : spire elongated, 

 tapering to a small but bluntish point : whorls six, 

 slightly convex, obscurely striated lengthways ; the 

 body whorl rounded, without an angle ; aperture ovate, 

 acute behind, peristome thin, considerably reflected on 

 the columellar side, leaving a slight fissure but con- 

 cealing the umbilicus: 0,20... 0,09. Aberdeen. 



