MELANIA.— Plate XXXVIII. 



Species 267. (Mus. Cuming.) 



MelaNIA occata. Mel. testa ovatd, tirenle-olivaced, an- 

 fractibus quinqne ad septem, superne concavo-declivibus, 

 delude contexts, litis tuberculatis perangustis undique 

 carina/ is; aperturd ovatd, ad basin sinuato-effusd, colu- 

 mella tenue reflexd, carulescente. 



The harrowed Melania. Shell ovate, greenish-olive, 

 whorls five to seven, concavely sloping round the up- 

 per part, then convex, keeled throughout with very 

 narrow tubercled ridges ; aperture ovate, sinuately 

 effused at the base, columella thinly reflected, bluish. 



Hinds, Ann. and Mas. Nat. Hist. vol. xiv. p. 8. 

 Helen ia Skastaensis, Lea. 



Sab. River Sacramento, California. 



Chiefly distinguished by its sharply defined sculpture 

 of narrow tubercularly festooned ridges. 



Species 2GS. (Mus. T. d. Busch.) 



Melania rakinodosa. Mel. testa otato-turbinatd, oli- 

 toced, obscure latifasciatd, anfractibus quinqne ad sex, 

 plano-conrexis, superne tumidis et obsolete nodosis ; 

 aperturd ovatd, columella intorto-effusd. 



The rare-noduled Melania. Shell ovately turbinated, 

 olive, obscurely broad-banded, whorls five to six, 

 flatly convex, obtusely swollen and obsoletely noduled 

 round the upper part : aperture ovate, columella 

 twistedly effused. 



Anthony, MS. in Mus. Yon dem Busch. 



Eab. United States. 



Rather a doubtful species, received by Dr. Busch from 

 Mr. Anthony with the above name in manuscript. 



Species 269. (Mus. Cuming.) 



Melania bella. Mel. testa conico-turritd, brumiescente- 

 olivaced, anfractibus septem ad octo, contexts, tricari- 

 natis, carina mediand angulato-productd, superd id tide 

 gemmatd, carinis versus aperturam gradatim etanidis ; 

 aperturd ovatd, ad basin lenue ejfusd. 



The pretty Melania. Shell conically turreted, brown- 

 ish-olive, whorls seven to eight, convex, encircled 

 with three keels, the middle one angularly produced, 

 the upper neatly beaded, keels gradually fading to- 



wards the aperture; aperture ovate, columella thinly 



effused at the base. 

 Conrad, MS. in Mus. Cuming. 

 Eab. Georgia, United States. 



An interesting species, to which our figure scarcely does 

 justice. Its principal characteristic consists in the whorls 

 being encircled above the prominent central keel by an in- 

 terrupted keel, or rather necklace of fine beads. It ap- 

 proaches rather near to Lamarck's M. carinifera. 



Species 270. (Mus. Cuming.) 



Melania kigida. Mel. testa acute turrild, fulvo-olives- 

 cente, nigra tarie fasciatd, anfractibus octo ad novem, 

 acute tricaritiatis, carina mediand multo prominente ; 

 aperturd ovatd, parviusculd, columella lenue reflexd, ad 

 basin caiialiculato-effusd. 



The rigid Melania. Shell sharply turreted, fulvous- 

 olive, variously banded with black, whorls eight to 

 nine, shaqsly three-keeled, the middle keel much the 

 most prominent ; aperture ovate, rather small, colu- 

 mella thinly reflected, caualiculately effused at the 

 base. 



Anthony, Pro. Acad. Nat. Sci. Philadelphia, 1860, p. 62. 



Eab. Tennesse 1 , United States. 



A sharply keeled, prettily banded species, more rigid and 

 acuminated in growth thau M. bella, while the uppermost 

 keel is not broken into beads as in that species. 



Species 271. (Mus. Cuming.) 



Melania tenebrocincta. Mel. testa conico-otatd, ful- 

 vescente, olivaceo-nigro latifasciatd, anfractibus sex ad 

 septem, Iambus, plano-declitibus, parum converts; aper- 

 turd parviusculd, ovatd, columella tenue reflexd, ad basin 

 sinuato-effusd. 



The dark-banded Melania. Shell conically ovate, 

 yellowish, encircled with a broad black band, whorls 

 six to seven, smooth, flatly sloping, but little convex ; 

 aperture rather small, ovate, columella thinly reflected, 

 sinuately effused at the base. 



Anthony, Pro. Acad. Nat. Sci. Philadelphia, 1860, p. 5S. 



Eab. Tennessee, United States. 



A rather obtusely conical shell, encircled with an un- 

 usuallv broad black band. 



