58 PEOCEEDINGS OF THE MALACOLOGICAL SOCIETY. 



Mangilia ecphoea/ n.sp. PI. V, Fig. 5. 



M. testa pai'va, ovato-fusiformi, albida, anfractibus 6, quorum 

 apicales tres pulcherrimecancellati, cseteris supernefortissime angulatim 

 projectis, dein ad suturas declivibus, longitudinaliter crassicostatis, 

 costis numero ultimum apud anfractum circa 14, undique spiraliter 

 arete liratulis, interstitiis prsecipue oblongo-quadratis, profundis, 

 ultimo apud basin gracili, canali producta, fusoide, apertura oblonga, 

 labro incrassato, eleganter transversim lirato et gemmulato, sinu perlato, 

 baud profundo, columella fere recta. Long. 5, lat. 2 mm. (sp. maj.). 



iZ^*i. — Persian Gulf, Gulf of Oman, lat. 24° 58' N., long. 56° 54' E., 

 156 fatboms. 



liemarkable for its acutely angled ridge surmounting tlie upper 

 portion of tbe wborls. Very elegant in form, fusoid towards tbe 

 base. Tbe nuclear wborls are seen witb a lens to be very finely 

 cancellate ; tbe longitudinal ribs and spiral lirse are extremely pro- 

 nounced, tbe interstices being squarely and deeply cut. 



Allied to Daphnella Amphit rites and nereidum, M. & S., from tbe 

 same locality ; perhaps, indeed, tbese two species might be transferred 

 to Mangilia without detriment. 



Mangilia (Glyphostoma) pycnochila,- n sp. PI. V, Fig. 6. 



M. testa ovato-fusiformi, crassa, albida, persolida, anfractibus 8, 

 quorum tres apicales subvitrei, lactei, Iseves, glabrati, cfeteris infra 

 medium unangulatis, perobscure longitudinaliter costatis, costis crassis, 

 undique spiraliter crassiliratis, liris numero ultimum apud anfractum 

 29-30, interstitiis pukherrime et arctissime longitudinaliter striatis, 

 apertura anguste oblonga, labro percrasso, intus, simul ac margine 

 columellari, albo, laevi, nitido, canali brevi. Long. 9, lat. 3-5 mm. 



J£ah. — Persian Gulf, Mussandam, 47 fathoms. 



A Glyphostoma with somewhat obscure but thick longitudinal 

 ribs, closely spirally Urate, the interstices being most finely striate. 

 The outer lip is most peculiarlj^ thickened, more so, proportionately 

 speaking, than in any other Pleurotomoid of my acquaintance. 



Clathukella amphiblestrttm,^ n.sp. PI. V, Fig. 7. 



C. testa fusiformi, albida, tenui, anfractibus 8, quorum apicales 

 quatuor ochracei, sub lente pulcbre cancellati, caeteris ad suturas 

 gradatis, supra unangulatis, longitudinaliter costatis, costis crassis, fere 

 rectis, numero ultimum apud anfractum 1 4, spiraliter liratis, liris panels, 

 interstitiis oblongis, costis ad juncturas lirarum pulcbre gemmulatis, 

 apertura oblonga, labro incrassato. sinu suturali lato, baud profundo, 

 margine columellari recto, canali brevi. Long. 7-5, lat. 2-5 mm. 



//^,i, —Persian Gulf, Gulf of Oman, lat. 24° 58' N., long. 56° 54' E., 

 156 fathoms. 



This species has some points in common with Ilavfjilia ecphora just 

 described, but tbe very prominent angled ridge being absent, its 



' fK(popa, a projection 



- iruKi/oxei^os, ^ith thickened lip. 



^ aixfi^K-rjcTfiov, a net. 



