SOWEEBT : NEW SHELLS FROM KUEACHI, ETC. 279 



3. Niso VENOSA, n.sp. PL XVIII, Figs. 10 and 11. 



Testa elongato-pyramidalis, laevis, nitens, albida, coeriileo tincta, 

 rufo-fusco balteata; spira elongata, acuta; anfractiis 15-16, planulati, 

 lineis 1-2 rufo-fuscis cincti, varicibus angustis irregularibus vivide 

 rufo-fuscis instructi ; anfractus ultimus f longitudinis ajquans, ad 

 peripheriam levitei' angulatus, lineis tribus fasciatus ; apertura sub- 

 ovalis, antice sub-angulata ; peristoma simplex, rufo-fusco anguste 

 marginatum; columella rectiuscula, la3 vis; umbilicus angustus. Oper- 

 culum comeum, tenue. Long. 16'50, diam. 5 mm. 



JIab. — Karachi. 



This charming addition to the little genus Niso is remarkable for 

 the bright reddish-brown vein-like lines which here and there cross 

 the whorls. The linear colour-bands are like those of some species 

 of Oheliscus} 



4. GiBBULA (Enida) Townsendi, n.sp. PL XVIII, Pigs. 7-9. 

 Testa parva, late conica, perforata, pallide viridula, rufo-fusco 



radiata et punctata ; spira acuta ; anfractus planato-declives, yix 

 concavi, oblique striati, liris spiralibus numerosis rotundatis parum 

 elevatis instructi, carina laciniata marginati ; anfractus ultimus acute 

 angulatus, ad angulum carinatus; carina squamis angulatis circ. 15, 

 laciniata ; basis leviter convexa, widula, esimie striato-laminata, 

 liris cii'c. 8, albo-articulatis munita ; umbilicus circularis, profundus ; 

 apertura parum obliqua, subquadrata, intus virescente-raargaritacea ; 

 peristoma acutum, fusco limbatum. Operculum corneum, teuue, 

 multispirale, extus concavum. Diam. 7, alt. 5-50 mm. 



Hah. — Mekran Coast.^ 



This beautiful little shell is so distinct in its characters, that it is 

 somewhat difficult to decide into what section to place it. I think 

 the nearest is A. Adams's genus Enida. The base is very much like 

 that of an Astralium, with a round deep umbilicus, and beautiful 

 laminar stria) crossing the spiral lirae. The operculum is thin, horny, 

 and multispiral, showing that the species belongs to the Trocliida) and 

 not to the Turhinidae. 



5. Minolta gradata, n.sp. PL XVIII, Figs. 5 and 6. 



Testa turbinata, late et profimde perforata, albida, fusco radiatim 

 grandimaculata ; spira elatiuscula, ad apicem acuta; sutura anguste 

 canaliculata ; anfractus 6, angulati, superne concavo-tabulati, oblique 

 striati, carinis duobus (lira angusta intervenicnte} instructi ; anfractus 

 ultimus biangulatus, irregulariter 3-4 carinatus ; basis convexa, cximio 

 striato-laminata, liris 6 rotundatis, munita ; apertura leviter obliqua, 

 subquadrata ; peristoma acutum. Diam. 7'25, alt. 7"oU mm. 



Sab. — Kurachi. 



This species is allied to M. varialilis, A. Adams, from which it 

 differs in its greater angularity, the prominence and sharpness of its 



^ Niso pyramidelloides, Nevill (Joum. Asiatic Soc. Bengal, 1871, Pt. II, p. 5, 

 pi. i, fig. 14), of which N. trilineatn, Miirch, is a syuonym, differs from N. venosa 

 iu its smaller size, the convexity of its whorls, its much smaller umbilicus, etc. 



- Specimens have recently been added to the National Collection from Thursday 

 Island, Torres Straits. 



VOL. I. — JULY, 1S95. 19 



