1901.] MOLLrSKS PROM THE PERSIAN GULP. 423 



Mitra (Costellaria) scitula A. Ad. 



P.G-. Gulf of Oman, Maskat. 10 fathoms, coral-sand, but 

 exceedingly scarce. 



Mitra (Costellaria) btbphakucha Melv, 



P.G. Gulf of Omau, Maskat. 



M.C. Charbar. ID fathoms, black sandy mud. 



Specimens not quite adult possess an interrupted spiral median 

 line on the body and the penultimate whorls, this being quite 

 evanescent in full-grown examples. 



Mitra (Costellaria) subtruncata Sowb. 



M.C. Charbar Point. 7 fathoms. Dead shells strewn abun- 

 dantly over the whole Mekran Coast, but, strangely, no live 

 examples have yet been dredged. This species may be identical 

 with M. crebrilirata Eve. The type of subtruncata was from Japan, 

 that of crebrilirata from Ceylon. 



Mitra (Pusia) atjreolata Swains. 

 P.G. Gidf of Oman, Malcolm Inlet. 



Mitra (Pusia) bla.xpordi, sp. n. (Plate XXIII. fig. 19.) 

 M. testa pan a, oblongo-fusiformi, solida, sordide alba, irregulariter 

 castaneo - maculata, Jlammis fulgetrinis depicta vel omnino 

 castaneo-suffusa ; anfraciibus sex, quorum apicales duo Iceves, 

 mavnllati, ccrteris turritis, arete longitudinaliter costulatis, 

 costis lavibus, ultimum a pud an fr actum dorsaliter satpius 

 evanidis, undique spiraliter densiliratis ; apertura angusta, labro 

 paullum effuso, intus Icevi, margine columellari inerassato, 

 quadripMcato. 

 Long. 5, hit. 2*25 mm. 



Hab. Gulf of Oman, Maskat. 15 fathoms. 

 A small species, but our examples are evidently adult. Were it 

 not for tbe plaits a decidedly columbelloid appearance would be pre- 

 sented. The spire is turreted ; whorls closely longitudinally ribbed, 

 most frequently vanishing on the body-whorl, transversely ob- 

 scurely but closely Urate. It is not unlike M. (Chri/same) tiarella 

 in miniature, but its structure is that of a Pusia. It is an inter- 

 esting form, and we have unusual pleasure in connecting with it 

 the name of Mr. "NV. T. Blanford, F.R.S., than whom no one has 

 laboured more energetically to extend the knowledge, not only of 

 the Zoology of India, but also of the neighbouring countries as 

 well. 



\\ i i B I ( Pun l i DMCOLOBIA Jive. 



P.G. Golf of Oman, Malcolm Inlet. 24 fathoms. 



Mitra (I'l'sia) ei.i/ 1 Melv. 



P.G. Shaikh Bhuaib I. 10 fathoms, on coral-sand. 



