MKLVILL : NEW MOLLTTSCA FROM THE PERSIAN GULF, 7'^TC. / 1 



FossARUs (Couthouyia) eudmettjs,' n.sp. PI. VII, Fig. 2. 



F. {Couthouyia) testa minima, alba, delicata, vix perforata, ovata, 

 anfractibus 5, quorum apicalis Irevis, vitreus, cseteris ad suturas 

 canaliculatis, undique spiraliter et uniformiter crassiliratis, interstitiis 

 squarrose cancellatis et fenestratis, ultimo circa regionem nmbilicarem 

 incrassato, fortiter carinulato, apertura ovata, labro extus 6-8 

 crenulato, columella excavata, apud basim paullum callosa. Long. 2, 

 lat. 1"5 mm. 



A very small and delicate species, which I think has nearly, if not 

 quite, attained full growth. It resembles Couthouyia insignis, Nevill, 

 but the aperture is smaller and rounder proportionately, and there 

 is hardly any umbilicar perforation, the sculpture being somewhat 

 similar. 



DiALA TRiLiRATA, n.sp. PL VII, Fig. 3. 



D. testa minuta, pyi-amidata, Itevi, nitida, perforata, anfractibus 8, 

 quorum apicales 2 globosi, vitrei, cseteris apud suturas caualiculato- 

 impressis, superue brunneo vel castaneo sparsim maculatis, maculis 

 panels squarrosulis, ultimo anfractu ad peripheriam acute corinato, 

 carinulis vel liris tribus contiguis pvifidito, ad basim angulatim 

 prolongato, apertura ovata, labro paullum effuso, columella recta. 

 Long. 2, lat. 1-15 mm. 



Characterized by its small size, diamond shape, the body-whorl 

 acutely keeled at the periphery, thrice Urate in all. It is obscurely 

 marked with distant squarish brown or chestnut blotches, just below 

 the sutures, otherwise is smoothish and immaculate. Liala is some- 

 times considered as a genus on its own merits, sometimes as a mere 

 appanage of Litiopa, liang. 



Cerithiopsis mathild^formis, n.sp. PL VII, Fig. 4. 



C. angustissime fusiformi, minuta, albida, vel hie illic brunnco- 

 sparsa, rugosa, anfractibus 9-10, apice mamillato, parvo, la3vi, cfeteris 

 multum apud suturas impressis, ventrieosis, quatuor liris spiralibus 

 rugosis accinctis, undique longitudinaliter obscure costulatis, juncturis 

 costularum lirarumque gemraatis, ultimo anfractu quinque liris 

 prasdito, apertura subrotunda, labro tenui, columella fere recta. Long. 

 3-15, lat 1 mm. (sp. max.). 



A very minute, narrow, yet rugged species, with some resemblance 

 to a Mathilda in miniature, hence the proposed specific name. 



EuLiMA nisonida,^ n.sp. PL VII, Fig. 6. 



E. testa fusiformi, subtrapeziformi, nitida, alba, polita, omnino 

 Isevissima, solida, anfractibus 12-13, quorum 2 apicales parvi, 

 globulares, cseteris ad suturas paullulum impressis, fascia laotea interna 

 infra, juxta suturas spiraliter solum videnda. ultimo anfractu apud 

 peripheriam angulato, apertura ovata, labro extus paullum incrassato, 

 columella recta apud basim producta. Long. 6, lat. 2 mm. 



ev5fj.yiTos, ' well-£asliioued.' 



Nisonida, fiom its likeness to a species of Niso, Risso. 



