422 MESSES. MELVILL AND STANDEN ON [June 18, 



half as many again on the body-whorl as have others. The rufous 

 banding is also entirely absent in specimens dredged from any 

 depth. Occasionally, too, examples with the body-whorl almost 

 wholly rufous brown turn up. Perhaps the nearest ally to tliis is 

 M. scitula Ad. ; the body-whorl is not so attenuate basally {vide 

 Sowb. Thes. Conch., Mitra, tab. xx. fig. 418). M. discoloria Eeeve 

 is hardly comparable, though a little similar in coloration. M.fidi- 

 cula Gould is far more scalate. M. mica Eeeve, from I. of 

 Guimaras, which is only known from a figure, is more like in form 

 but of different pattern ; and M. ccelata Eeeve has whorls angular 

 above and outer lip more flexuous. It is likewise comparable to 

 M. delicata Ad. 



The type is twice banded wdth rufous brown spirally at the 

 interstices between the ribs. The var. immaeulata, a white or 

 pale yellow almost unhanded variety, is found at 10-50 fathoms. 

 This is probably the shell mentioned (Journ. As. Soc. Bengal, 

 xliv. pt. 2, p. 106) by Messrs. G. & H. Nevill as " a new species 

 closely allied to Turricida (Thala) casta H. Ad., which has been 

 dredged rather abundantly by Mr. W. T. Blanford in the Gulf of 

 Oman." T. casta H. Ad. is a synonym of M. (Turricula) hastaia 

 Sowb., which occurs in our catalogue, and which also might be 

 mentioned as an ally of M. malcolmensis. 



Mitea (Costellaeia) mouesta Eeeve. 

 I. Angrias Bank {Capt. W. A. Tindall). 



Mitea (Costellaeia) obeliscus Eve. 

 I. Bombay (F. W. T.). 



Mitea (Costellaeia) pasithea 1 , sp. n. (Plate XXIII. fig. 17.) 

 M. testa fusiformi, alba, aspera, solidida, apud basim anfractns 

 ultimi dorsaliter ochraceo-suffnsa ; anfractibus 8, quorum 

 apiccdes duo vitrei, planati, gradatuli, ca>teris apud suturas 

 midtum impressis, gradato-turritis, loficjihidinaliter arete costa- 

 tis, costis anfractus ultimi acl viginti, undique spiraliter 

 sulculosis ; apertura oblonga, labro vix effuso, extus crenulato ; 

 columella triplicata, canali paullum recurvo. 

 Long. 9-50, lat. 4 mm. 



Hah. Gulf of Oman, Maskat. 19 fathoms. 



Distinguished by its conspicuously shouldered whorls, uniformly 

 closely longitudinally oblique-ribbed, these ribs being crossed by 

 many regular spiral sulci, which give them a beaded appearance. 

 The surface is pure white, with the exception of a dorsal ochreous 

 band on the lower portion of the body- whorl. 



Mitea (Costellaeia) eevelata Melv. 



P.G. Shaikh Shuaib I. Kais (or Gais) Island. 10-15 fathoms, 

 shingle and dead coral bottom. 

 I. Karachi. Not infrequent. 



1 TraoLOeos, altogether divine. 



