24 Melvill, Molluscan Fauna of the Arabian Sea, etc. 



ing, crystalline and delicate. Longitudinal straight riblets 

 adorn each whorl, these, as in the case of so many ribbed 

 Turbonillce, are evanescent below the middle of the last 

 whorl. The aperture is ovate, outer lip thin, elongate, 

 columella very obscurely once plaited. This shell has for 

 its allies T. scalaris Phil, a European species, entirely 

 different in texture and substance, though akin in form, 

 and T. {Pyrgostelis) Velaini Tryon = sca/arzs Velain non 

 Mont, from the Island of S. Paul, South Indian Ocean. 

 I have only seen a figure and description of this latter 

 species, from which T. templaris seems to differ in the 

 perfect smoothness of the interstices between the ribs, 

 those in T. Velaini being striate, in the ten as against eight 

 whorls, and in being larger in all its parts. T. Abercrombiei, 

 described by myself in 1893, from Bombay, is like in its 

 graduate whorls, but differing in form of mouth and last 

 whorl, and lastly, Pyrgulina pyrgomella Melv., also from 

 Bombay, resembles our shell in form, but here the longi- 

 tudinal ribs begin at a little distance from the sutures, the 

 intermediate space being smooth, and the ribs are also 

 slightly papillose at the upper end. The columella is also 

 very conspicuously plaited. 



(vide Pfoc. Mai. Soc.^ Vol. II., 1896, pp. 113, 114.) 



{templaris, of or belonging to a temple.) 



Nerita (Heminerita) anodonta, sp. nov. 



N. testa parva, subglobosa, solidiuscula, anfractibus 

 iribus, apicalibus erosis, ultimo rapide accrescente, spiraliter 

 filo-lirato, in uno specimine liris concinnenigris, regularibus, 

 in altero irregutariter dispositis, hie illic nigro-tessellatis vel 

 maculatis, apertura lunata, labro paullum incrassato, intus 

 Icevi, area columellari planata, nitida, ochraceotincta, inargine 

 non denticulato, recto, operculo paucispirali, extus granuloso. 



Alt. 9, diam. 10 mm. 



Hab. Karachi (J. O. Twells, Esq.). 



