1901.] MOLLTJSKS FROM THE PERSIAN GtTLE. 423 



MiTRA (Costellaria) scitula a. Ad. 



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

 exceedingly scarce- 



MiTRA (Costellaria) stephanuoha Melv. 



P.G. Gulf of Oman, Maskat. 



M.C. Charbar. 10 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) subtrunoata 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 suhtruncata was from Japan, 

 that of creh-ilirata from Ceylon. 



MiTRA (Pusia) aureolata Swains. 

 P.G. Gulf of Oman, Malcolm Inlet. 



MiTEA (Pusia) blajsteordi, sp. n. (Plate XXIII. fig. 19.) 

 M. testa ])urva, oblongo-fusiformi, solida, sordide alba, irregidariter 

 castaneo - macidata, jiammis fidgetrinis depicta vel omnino 

 castaneo-suffusa ; arifixictibus sex, quoru^n ajncales duo Iceves, 

 mamillati, cceteris turritis, arete longitudinaliter costulatis, 

 costis IcEvibus, ultimum apud anfractum dorsaliter scepius 

 evanidis, undique spiraliter densiliratis ; apertura angusta, labro 

 paxdlum effnso, intus Icevi, margine columeUari incrassato, 

 quadripUcato. 

 Long. 5, lat. 2'25 mm. 



Hab. Gulf of Oman, Maskat. 15 fathoms. 

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

 not for the 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 lirate. It is not unlike M. (Chrysame) 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. W. T. Blanford, P.E.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. 



MiTRA (Pusia) discoloria Eve. 



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



MiTRA (Pusia) eliz^ Melv. 



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



