MELANIA.— Plate XXI. 



The engraved Melania. Shell elongately terete, solid, 

 yellowish-olive, streaked and spotted with chestnut- 

 brown, whorls numerous, slopingly flattened, minutely 

 spirally linearly engraved throughout, contracted at 

 the sutures ; aperture small, somewhat rounded, co- 

 lumella callously effused at the base. 



llab. ? 



The habitat of this very characteristic form of Pacln/cln- 



us is not known, but it is doubtless from Central America. 



The surface is groove-striated throughout with such minute 



regularity, that the shell looks, beneath the lens, as if it 



were ena;ine-turued. 



Species 152. (Mus. Cuming.) 



Melania meretrix. Mel. testa turriculatd, luteo-oli- 

 vaced, cinereo-viridi profuse maculata, anfractibus cris- 

 pato-striatis, superne declivi-concavis, delude rotunda- 

 lis ; aperturd oratd, basl effusd. 



The gaily-painted Melania. Shell turrieulated, yel- 

 lowish-olive, profusely blotched with ash-green, whorls 

 crisply striated, slopinglv concave round the upper 

 part, then rounded; aperture ovate, effused at the 

 base. 



llnh. Taheiti. 



Of rather slighter substance than the allied species, 

 crisply striated throughout, and boldly painted with ash- 

 green blotches upon a yellowish-olive ground. 



Species 153. (Mus. Cuming.) 



Melania pallidula. Mel. testa subulato-conicd, soli- 

 dlusculd, palllde olivaceo-luted, anfractibus octo ad 

 novem, declivi-planatis, hrrilms, primis perpaucis pli- 

 cato-costatis ; aperturd oblongo-ovatd, basl sublacu- 

 natd. 



The pallid Melania. Shell subulately conical, rather 

 solid, pale olive-yellow, whorls eight to nine, slopingly 

 flattened, smooth, the first few plicately ribbed ; aper- 

 ture oblong-ovate, faintly channelled at the base. 



Hab. West Africa. 



Of the true Melania type, rather solid and smooth, but 



strongly ribbed at the apex. 



Species 154. (Mus. V. d. Busch.) 



Melania testudinaria. Mel. testa turriculatd, tenul- 

 culd, lutescente, carneo-tinctd, rufo-castaneo maculata 

 et strigatd, anfractibus panels, plano-convexis, obsolete 

 spirallter strlatis ; aperturd ovatd, basl rix eff'usd. 



The tortoise-shell Melania. Shell turrieulated, 

 rather thin, yellowish, flesh-tinged, blotched and 

 streaked with reddish-chestnut, whorls few, flatly 

 convex, obsoletely spirally striated ; aperture ovate, 

 slightly effused at the base. 



Von dem Busch, Philippi, Abbild. und Bescb. Couch, 

 vol. i. p. 3. pi. 1. f. 14. 



Hab. Java. 



A flesh-tinted shell, of rather slight structure, confusedly 



blotched and streaked with reddish-chestnut. 



