M E L A N I A . 



Plate XXIII. 



Species 161. (Mus. Cuming.) 



Melania Dembea. Mel. testa subulatd,ferrugineo-tinctd, 

 rufo-fusco punctata, fascia tenebrosd circa columellam, 

 anfractibus octo ad novem, undique grano-liratis, litis 

 longitudinaliter subplicatis ; aperturd parvd, lahro co- 

 lumellari calloso-reflexo. 



The Dembea Melania. Shell subulate, rust-stained, 

 dotted with red-brown, with a dark band round the 

 columella, whorls eight to nine, grain-ridged through- 

 out, ridges longitudinally subplicated ; aperture small, 

 columella)- lip callously reflected. 



Ruppell, MS. in Mus. Cuming. 



Hab. Lake Dembea, Abyssinia ; Riippell. 



An interesting grained species, collected by Dr. Riippell 

 in a lake in the interior of the province of Dembea, Abys- 

 sinia, supposed to be one of the sources of the Nile. It 

 is obviously of the same general type as the North African 

 M . tuberculata. 



Species 162. (Mus. Cuming.) 



Melania crebra. Mel. testa subulato-conied, tenebroso- 

 castaned, anfractibus decern, convexvusculis, longitudi- 

 naliter tenue plicato-liratis, spiraliter linear 'i-sulcatis, 

 wturis anguste canaliculatis ; aperturd parvd, ad basin 

 subeffusd. 



The close-grained Melania. Shell subulately coni- 

 cal, dingy-chestnut, whorls ten, rather convex, longi- 

 tudinally finely plicately ridged, spirally linearly 

 grooved, sutures narrowly channelled ; aperture small, 

 slightly effused at the base. 



Lea, Pro. Zool. Soc. 1850, p. 193. 



Huh. Island of Guimaras, Philippines (in a small stream) ; 

 Cuming. 



Mr. Cuming met with thousands of dead specimens of 

 this species in the bed of a small stream at Guimaras, but 

 none in a living state. 



cato-striatis ; aperturd parvd, ad basin subeffusd, labro 

 superne emarginato. 



The hybrid Melania. Shell narrowly turreted, solid, 

 whitish, red-tinged, partially covered with an olive 

 epidermis, whorls eight to nine, obtusely angled round 

 the upper part, longitudinally wave-ribbed, spirally 

 groove-striated ; aperture small, slightly effused at 

 the base, lip notched at the upper part. 



Hab. ? 



This shell, which has rather a deformed manner of con- 

 volution, partakes of the character of Pleurotoma, and is 

 probably an estuary species. 



Species 103. (Mus. Cuming.) 



Melania hybrida. Mel. testa anguste turritd, solidd, 

 albidd, rufescente-tinctd, epidermide olivaced partim 

 tinctd, anfractibus octo ml novem, superne obtuse pli- 

 catis, longitudinaliter undato-costatis, spiraliter sul- 



Species 101. (Fig. a, b, c, Mus. Cuming.) 



Melania lateritia. Mel. testa ovatd, subventricosd, 

 spird breviusculd, olivaced vel luteseente, interdum ca- 

 ruleo-fasciatd, anfractibus octo ml decern, undique pro- 

 fuse quadrato-granatis, suturis impresso-canaliculatis ,• 

 aperturd oblongo-ovatd, labro colnmellari calloso-ef- 

 fuso. 



The brickwork Melania. Shell ovate, somewhat 

 ventricose, spire rather short, olive or yellowish, 

 sometimes blue-banded, whorls eight to ten, pro- 

 fusely square-grained throughout, sutures impressly 

 channelled ; aperture oblong-ovate, columellar lip 

 callously effused. 



Lea, Pro. Zool. Soc. 1850, p. 196. 



Hab. Philippine Islands ; Cuming. 



An extremely variable species, collected abundantly by 

 Mr. Cuming at several of the Philippine Islands. It is 

 mostly sculptured throughout with prominent square 

 grains, frequently of large size, resembling courses of brick- 

 work. 



Fig. 165 a, b, and Fig. 166. (Mus. Cuming.) 



The shells here figured I had regarded as species dis- 

 tinct from the preceding, the former strongly square- 

 grained, with the spire sharply acuminated, and the latter 

 acuminated, with the grains almost obsolete. Mr. Lea, 

 however, has pronounced them to be varieties of M. late- 

 ritia, and a more enlarged examination of the specimens 

 brings me to the same conviction. 



January, 1S60. 



