2J6 ^If. E. A. S:nitli on Mvllusca from the 



acute tubercles, and stronger lines of growth making the 

 basal lirai more distinctly crcnulatcd. 



Named B. Nevilli in reniemljrance of my late friend 

 Geoffrey Nevill, formerly of the Indian Museum, Calcutta. 



Gaza {Callogaza ?) Frederici, sp. u. 



Testa breviter couica, late umbilicata, albo-margaritacea ; anfractus 

 8, regulariter lente accrescentes, plani, sujira et infra serie tuber- 

 culorum acutorum ornati, lineii-que incrementi obliquis sculpti, 

 sutura canaliculata sejuncti, ultirausad peripheriam carina secuiida 

 pulchcrrime serrata cinctus, infra liris coueentricis quinis minute 

 eerralis oruatus ; apertura obli(pie subquadrata, intus iridescens, 

 margaritacca ; labrum leviter incrassatum, album, subexpansura ; 

 cohimella reflexa, umbilicum partim obtegens, callo tenui labro 

 juncta. 



Diam. maj. 25 mm., min. 23 ; alt. 20. 



Hah. Station 333, Gulf of Manar, 401 fath. 



A single specimen only. It is a very beautiful form and 

 ■well characterized by its nacreous surface, the rows of acute 

 tubercles at the upper and lower part of the whorls, the deep 

 channelled suture, the wide pervious umbilicus, partly covered 

 by the reflection of the columella, and the biearinate cha- 

 racter of the body-whorl The lower keel, which forms the 

 periphery, is very finely serrated l^y the clearly developed 

 lines of growth. Of the live basal lirte, which are also 

 minutely serrated, that which borders the umbilicus is 

 stouter than the rest. 



BusUissa patida, Martens, is more widely umbilicated, has 

 a third row of acute nodules, only four on the base, and a 

 less raised spire, and the characters of the peristome appear 

 to be different if Martens's shell was mature. 



Named after ray friend Mr. F. Beavis, who was much 

 impressed with the beauty of this shell. 



Calliostoma admirandum, sp. u. 



Testa elate acute conica, imperforata, pallide cornea, maculis saturati- 

 oiibus irregulariter picta ; anfractus 9, plani, seriebus quiuque 

 granulorum minimorum, seriebus minoribus inteicalantibus, 

 ornati, ultiraus ad peripberiam acute angulatus, infra concentrice 

 liratus, liris circiter 12, subgranulatis, rufo punctatis ; apertura 

 obli(]ua, subquadrata ; columella alba, ihcrassata, obliqua, leviter 

 arcuata, retlexa. 



Diam. 17 mm., alt. 20. 



Hub. Station 258, W. of Travancore, 103 fatli., sand. 



