from thr Persi m Gulf, <Ssc. 1 L9 



Allied most nearly to the much larger T. Candida^ Ad., 

 and also to T. materna and unicincta-, Melv. From tho 

 last of these it differs in more frequent costulations and 

 absence of any spiral coloured band ; from material in greater 

 delicacy of substance, and also in the straight smooth riblets 

 being closer and almost double in number. 



Turbonilla umbrina*, sp. n. (PI. IV. fig. 11.) 



T. testa attenuate, solidula, compacta, sordide brunnca, lam; an- 

 tra cti bus L6— 16, inclusie apicalibus heterostrophis, omnibus ad 

 Buturas impreusis, undiqua arete coBtulatis, costis crassis, rectis, 

 interstitialiter superficie lajvi, ultimo anfractu intra peripberiara 

 laevigata, costis evanescentilms ; apertura tore rotunda, parva, 

 labro vix effuso, columella recta. 



Long. 8, lat. l - 7o mm. 



Hal. Karachi, 1906. 



A somewhat coarsely built Tin . of a dull brown 



colour throughout ; whorls fairly impressed suturallv, longi- 

 tudinal riblets frequent, straight, close, interstices quite 

 smooth; mouth, proportionately speaking, small, roundish, 

 columellar margin straight, outer lip hardly effuse. It was 

 very rare at the above locality. 



Eulimella squarrosula, sp. n. (PI. IV. fig. 10.) 



E. testa alba, delicata, tcnui, anguste fusiformi, versus apicem 

 paullum caudata : anfractibus ad 14, quorum apicales '3 valide 

 heterostrophi, eaeteris paullulum ad Buturas impressis, laevissimis, 

 sub lente lougitudiualiter albo-strigatis, ultimo anfractu duos 

 proximos longitudine exsequante ; apertura squarrosa, peristomate 

 tenui, columella fere recta. 



Long. 4*50, lat. 1 mm. 



Huh. Persian Gulf, Mussandam, 55 fathoms. 



A species plain in form, hardly impressed suturally ; whorls 

 smooth, straight ; mouth square, outer lip and columella 

 nearly straight. This differs from all the eight species 

 hitherto included in this fauna, perhaps coming nearest to 

 E. vtnustu t, ^Iclv.j distinguished by its elegant pagodiform 

 whorls. 



* I'xtbra, .-hade, from the dusky colour. 



t Proc. Make. Soc. vol. vi. L904, p. 66, pi. v. fig. 15. 



