On the Characters of Astele. 41 



wlioii is remarkable; in some lights the granules seem Uke 

 a forked continuation of the upper plaits, or ribs ; but in 

 others, they look like a cross series of granules disposed in 

 latitudinal rows, parallel with the suture. 



The underside of the body whorl exhibits from five to 

 six of these granulated striae, parallel to the margin, which 

 is but shghtly carinated in the full-grown shell, but much 

 more so in the young, yet without being dilated. 



The colour is pale straw, the operculum is white, the 

 lunate depression at the umbilicus very conspicuous, and 

 the under part of the body whorl nearly flat. 



N.B. — There are, I suspect, two, if not three, other 

 species in Dr. Milligan's collection, but they are so en- 

 crusted with Serpulce, &c., that I am fearful of describing 

 them. 



3. Carinidea acuta. 

 Sharp-edged Trochus. 



Shell small, longitudinally plicated and transversely granu- 

 lated at the lower suture and margin of the body whorl, with 

 a sharp prominent and flattened rim. 



Inhabits under stones in Burial Island, Port Arthur. 

 Eather smaller than C. granulata, which it so closely re- 

 sembles, that it may probably be but a variety. 



The carinated line, however, is much more prominent 

 on the suture than is usual in the young of the last species, 

 and that round the body whorl is not only more sharply cari- 

 nated, but absolutely dilated, and partially obsoletely un- 

 dulated. 



I have not access at present to more than two specimens, 

 and have therefore some hesitation in giving it as a new 

 species. 



