224 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, Vol. XVI. 



DRILLIA CONTINUA, sp. n. (PI. C. fig. 17.) 

 D. testa attenuata, fusiformi, lsevissima, alba, nitida ; anfractibus 10^, quorum 

 1£ apicales subvitrei, nitidi, complanati, cseteris longitudinaliter paucicosta- 

 tis, costis exacte inter se continuis, lsevibus, albis, infra medium delicate 

 uniangulatis, anfractu ultimo apud basim paullum pyriformi, numero costarnm 

 ad octo ; apertura subobliqua, oblonga, intus alba, labro haud multum incras- 

 sato, sinu lato, sed non profundo. 

 Long. 10, lat. 3*75 mm. 

 Hab. Persian Gulf, Mussandam, 47 fathoms. 



Akin to D. opalus, Reeve, and conspicuous for its exactly continuous longi- 

 tudinal ribs, those of whorl succeeding whorl descending in a perfectly straight 

 line to the base. These whorls are slightly once-angled beyond the centre. 

 The whole surface is white, with a slight ochreous tinge, and smooth. 



DRILLIA GRANATELLA, sp. n. (PI. 0. fig. 18.) 

 D. testa parva, Isete punicea, solida, nitida, fusiformi ; anfractibus 6, duobus 

 apicalibus perlsevibus, puniceis, hie illic albo suffusis, cseteris crassicostatis, 

 costis paucis, laivibus, nitidis, numero ultimum apud anfractum circa 7, 

 superficie omnino laevissima, dosaliter juxta labrum gibberula ; apertura 

 breviter ovata, labro tenui, albo-suffuso, sinu lato, canali brevissimo. 

 Long. 5, lat. 1*50 mm. 

 Hab. Persian Gulf, Gulf of Oman, Maskat, 15 fathoms. 



This little species, though so small, is, in our opinion, a Drillia rather than 

 Mangilia, being nearly allied to the beautiful series of Drillia — viz., dwjecta, 

 Smith, per&ica, Smith, and resplendens, Melv. — peculiar to the same region. 

 It is a remarkably smooth and shining shell, and the pomegranate-pink colour 

 (like the fruit of Punica granatum, L.) seems characteristic and quite peculiar. 



DRILLIA LITHORIA* sp. n. (PI. C. fig. 20.) 

 D. testa parva, fusiformi, pallide rufa, solidula ; anfractibus 8, quorum 2 

 apicales leaves, vitrei, cseteris magnopere supra medium anfractum tumescen- 

 tibus et spiraliter Doduliferis, nodulis paucis, gemmatis, dein, anfractus apud 

 supernos, tornatis, ultimo anfractu basim versus spiraliter paucilirato, liris 

 pulchre et minute gemmatis ; apertura quadrato-ovata, labro tenui, sinu lato, 

 haud profundo, canali brevi. 

 Long. 8, lat. 2"50 mm. 

 Hab. Persian Gulf, Bahrein Islands, 6 fathoms, coral-sand. 

 A small highly-coloured species, with conspicuous, spiral, swollen, nodulous 

 an»le just above the centre of the whorls. We cannot connect it nearly with 

 any other species. 



DRILLIA AUDAX, sp. n. (PI. D. fig. 1.) 



D. testa oblongo-fusiformi, solida, parva, albo-straminea ; anfractibus septem, 



quorum tribus nitidissimis, hyalinis, lasvibus, apicalibus, cseteris trinis, antepe- 



nultimo quaternis, ultimo circa viginti spiralium lirarum ordinibus accinctis, 



ad anfractus supernos gemmulatis, supra suturas, etiam, lira spirali fortiori 



* >.lQo! } in sense of a precious stone. 



