CHIEFLY OF THE UNITED STATES. 123 



oldest are dark, and partly covered by the oxide of iron. The young are greenish 

 horn color. The whorls are flat, the lower one having an acute angle at the middle. 

 None of them being perfect at the apex, the number of whorls cannot be ascertained 

 with precision; probably there are about nine. One of the younger specimens has a 

 disposition to indistinct folds towards the apex. In outline it is near to comdus 

 (nobis,) from Fernando Po, but it is a larger species, is not striate, and differs in 

 having a well defined angle on the middle of the whorls. Aperture about one-fourth 

 the length of the shell. 



'to*- 



Melania Mauiensis. pi. 22, fig. 19. 



Testa cancellata, inferne transverse striata, conoidea, acuminata, subcrassa, luteo-cornea ; spira subelevata ; 

 suturis irregulariter impressis ; anfractibus denis, plauulatis, ad apioem crebri plicatis ; apertura grandi, 

 ovata, superne angulata, intus cserulea alba ; labro expanse, acuto ; columella torta. 



Shell cancellate, transversely striate below, conoidal, acuminate, rather thick, yel- 

 lowish horn color ; spire rather elevated ; sutures irregularly impressed ; whorls ten, 

 flattened, thickly folded at the beaks ; aperture large, ovate, angular above, bluish 

 white within; outer lip expanded, acute; columella twisted. 

 Proc. Acad. Nat. Sci. 1856, p. 145. 



Eah. — Maui, Sandwich Islands, W. Newcomb, M. D. 



My cabinet and cabinet of Dr. Newcomb. 

 Diam. -41, Length 1-7 inch. 



Remarlcs. — It has been supposed that there were no Melanice in the Sandwich 

 Islands ; but Dr. Newcomb, who resided there for five years, during which time he 

 investigated their moUusca more thoroughly than any Zoologist who had preceded 

 him, found two fine species, this and Neivcombil, herein also described. The Mauiensis 

 is a well characterized cancellate species, graceful in its form, and with a large aper- 

 ture. It is very closely allied to Mindoriensis (nobis,) from the Philippine Islands, 

 the form of the aperture being very nearly the same ; but it is a much smaller species, 

 not so acuminate, and the outer lip is more expanded ; the granulations also are 

 smaller and sharper. It is also allied to lateritia (nobis,) from the Philippines, but is 

 more slender, with more delicate granulations, and with a much smaller aperture. It 

 differs also in the color of the interior. In general outline and appearance it resembles 

 the figure of porcata Jonas, in Phili. Conch., pi. 4, fig. 19, but is not much more than 

 half the length of that shell, and the aperture is much larger in proportion. Aperture 

 nearly half the length of the shell. 



