1901.] MOELUSKS FROM THE PERSIAN GULF. 441 



Drillia turris Eve. ( = Plcurotoma pagoda Eeeve). 

 P.G. Gulf of Oman, Maskat. 

 I. Karachi, but very rarely. 



Drileia variabilis Sm. 



P.G. Gulf of Oman, lat. 23° 50' N., long. 27° 50' E. Soft 

 mud. 



I. Karachi, smaller examples near the mouth of K. Indus, 

 3 fathoms, sand and mud. 



This species has also been received by us from the Eed Sea 

 (Tomxscnd) and the Andaman Isles (Booley). 



Drielia (Ceaves) crassa Sm. 

 I. Bombay (Abercrombie). 



Drieeia (Ceavus) pr^eceara Melv. 



I. Bombay, up the coast (Abercrombie). 



jMajjuieia averlna, sp. n. (Plate XXIV. fig. 5.) 

 M. testa uvato-Jusifufnti, alba, solida ; anfractibus 7, quorum 

 aptcales duo laves, albi, ceteris regulariter recticostatis, costis 

 crassiusculis, in tdtiiao circa septem, undique spiraliter arete 

 liratis, litis alter natim tenuibus vel fortibus, ultimo anfractu 

 longitudine cceteros exaquante ; apertura anguste ovata, labro 

 incrast>ato,siau lato, brevi; columella fere recta; peristomate omni 

 aurantio-suffuso. 

 Long. 0, lat. 2'7o mm. 

 Hab. Karachi. 



A stout, pure white little Mangilia, with strong ribs, crossed 

 by alternate strong or thin lira?, and gemmuled at the points of 

 junction. The lip and columellar area are beautifully suffused 

 with orange-yellow. 



Mangilia cardinalis Eeeve. 



1. Karachi. 3 fathoms, loose stone bottom. 



Mangilia chllosema Melv. 



P.G. lienjam Island. 15 to 20 fathoms, mud. 



M.C in several places off the coast at 10-15 fathoms. 



I. Karachi. Exceedingly abundant among loose rocks, 

 sand, and mud at low tide. Bombay (Abercrombie) is shell-sand. 



The almiities oi this species lie with the New Caledonian 

 M. himerta and himerodes M. & S., and perhaps with the 

 Mediterranean M. vauquelini Payr. 



Mang eia grassieabrum Eve. 



P.G. Ghxlf o! Oman, Malcolm Inlet (Kuhbatt Ghazira). 

 3 fathoms 

 1. Karachi. 



Mangilia oixii'iENs Sm. 



I. Bombay (Abercrum/itr), m .^lii-ll-sand, mostly worn. 



