UNIVERSITY 



UKSMOULEA. 



N. i-KLU <<n>A, Risso. PI. 18, fig. 360. 



Hyaline, with opaque white spots and callus; frequently brown- 

 spotted around the suture, and sometimes on the periphery. 



Plain., -25--35 inch. 



Mediterranean Sea. 



Weinkauff considers this var. minor of N. neritea, but the 

 coloration is decidedly different as \vell as the size being smaller. 



X. KAMIESCHI, Chemn. PL 18, tigs. 357, 358. 



Brown, with a white sutural and peripheral band, callosity 

 rosy-brown. Last whorl enveloping a portion of the spire, which 

 only shows three minute whorls, and has a sharp point. 



Black Sea. 



<i>nus DESMOULEA, Gray. 



Desmoulea is remarkable for its obtuse apex and solid growth, 

 much resembling some species of Cassididse; when in fine con- 

 dition, the shell is clothed with a velvety epidermis, but most 

 cabinet specimens are denuded of this. The animal is unfortu- 

 nately unknown, and therefore the systematic position of the 

 genus remains somewhat uncertain for, whilst some species 

 connect closely with Nassa, the revolving sculpture, globose 

 form, sunken suture and mouth of others are suggestive of 

 Semicassis. 



D. ABBREVIATA, Gmelin. PL 18, fig. 361. 



Yellowish white, With chestnut-colored spots and strigations. 



Lengt-ti, 1-1*5 inches. 



Cape of Good Hope. 



Differs from all the other species in its distant incised revolv- 

 ing lines. 



D. PINGUIS, A. Adams. PL 18, figs. 302-364. 



Yellowish and white, variegated, with alternate white and 

 yellowish brown irregular spots around the suture; revolving 

 sculpture close and fine raised lines. Length, 1 inch. 



Senegal, Japan. 



The latter locality is assigned for D. crass*, A. Ad. (fig. 364), 

 which Reeve changed to Nassa ponderosa,tkQ former name being 

 preoccupied in Nassa. D. pulchra, Gray, the type of his genus is 



