M E L A N I A . 



Plate XXVII. 



Species 184. (Fig. a, b, c, Mus. Cuming.) 



Melania speciosa. Mel. testa ovato-oblougd, nigra, sub- 

 villosd, anfractibus paucis, convexo-planis, spiraliter 

 striatis, superui anguste acute angulatis, ad unguium 

 squamato-spinosis, spiuis parvis, conferiis, subselosis ; 

 aperturd oblougo-ovatd. 



The goodly Melania. Shell ovately oblong, black, a 

 little, hairy, whorls few, convexly flattened, [spirally 

 striated, sharply narrowly angled round the upper 

 part, squamately spined at the angle, spines small, 

 close-set, slightly bristly ; aperture oblong-ovate. 



Adams, Pro. Zool. Soc. 1853, p. 99. 



Hub. New Caledonia ; Cuming. 



In this very interesting species there is a curious link 

 with M. setosa. The whorls are similarly coronated with 

 fine spines, each emitting a bristle, but the spines are much 

 smaller and closer together. 



Species 185. (Fig. 185 a, b, and 186 o-, o, Mus. Cuming.) 



Melania setosa. Mel. testa ovato-venfricosd, subglobosd, 

 solidiiiscnld, nigrescente-olivaced, anfractibus octo ad 

 novem, spiraliter liratis, longitudinaliter interdum tu- 

 mido-plicatis, superne coucavo-augulalis, ad unguium 

 minute squamato-spinosis, spinis eonspicue setigeris; 

 aperturd subampld, columella late callosd, subiucurrd. 



The bristly Melania. Shell ovately ventricose, sub- 

 globose, rather solid, blackish-olive, whorls eight to 

 nine, spirally ridged, longitudinally sometimes swol- 

 len-plicated, concavely angled round the upper part, 

 minutely squamately spined at the angle, each spine 

 bearing a conspicuous bristle ; aperture rather large, 

 columella broadly callous, a little incurved. 



Swainson, Zool. Illus. vol. i. Melania, f. fi, 7, 8. 

 Buccinum aculeatum, Lister. 



Hub. Islands of Guimaras and Negros, Philippines (in 

 rocky streams), and Point Palmas, Sumatra (in slug- 

 gish streams) ; Cuming. 



The two varieties of this interesting species, Fig. 185(7, j 

 b, and Fig. 18(5 a, b, collected by Mr. Cuming respectively 

 at the Philippine Islands and at Sumatra, I had taken at ' 



first sight to be different species. The first is perfectly 

 globose, plicated only at the angle, with the spire but 

 little raised, and the columella much incurved. In the 

 latter the shell is turbinated ovately, and wrinkled with 

 strong concentric folds, and the columella is straighter. 

 In both the upper angle of the whorls is coronated with 

 minute spine-scales, out of each of which protrudes a 

 strong, erect bristle. The species was known to the older 

 French writers as "The ventricose spiny river Thiara." 



Species 187. (Fig. a, 6, Mus. Cuming.) 



Melania dura. Mel. testa coidco-turritd, crassd, intense 

 cast tinea, anfractibus septern ad octo, superne rude fu- 

 niculi// is, delude subaugulatis el valide oblique plicalo- 

 iuberculatis ; aperturd ovatd. 



The hard Melania. Shell conically turreted, thick, 

 dark-chestnut, whorls seven to eight, rudely corded 

 round the upper part, then slightly angled, and 

 strongly obliquely plicately tubercled ; aperture ovate. 



Hab. ? 



A well-defined species, of stout substance and dark- 

 chestnut colour. 



Species 188. (Mus. Cuming. | 



Melania hippocastanum. Mel. testa ovatd, subvenlri- 

 cosd, castaueo-uigrd, anfractibus paucis, convexis, cos- 

 t/s dtstnntibiis eonspicue spinoso-squamatis cinctis, sutu- 

 ris subexcava/is ; aperturd ovatd, fauce carulescente, 

 columella late callosd. 



The horse-chestnut Melania. Shell ovate, rather 

 ventricose, chestnut-black, whorls few, convex, en- 

 circled with distant, prominently spine-scaled ribs, 

 sutures rather excavated ; aperture ovate, interior 

 bluish, columella broadly callous. 



Hub. Borneo. 



This interesting species, from Borneo, stands quite alone 

 in the genus. Its encircling armature of spur-like ribs of 

 spine-scales represents a type altogether new. 



IS S" -- A£ 



February, L860 



■Hrf** 







