| OCR Text |
Show 1878.] FROM THE ANDAMAN ISLANDS. 813 39. LATIRUS INCARNATUS (Deshayes), var. Turbinella incarnatus, Desh., Kiener, Coq. Viv. pl. 18. fig. 3; Reeve, Conch. Icon. iv. fig. 55. Hab. Philippines; Australia. The shell from the Andaman Islands, which I consider a variety of this species, is light brown and darker between the ribs; the apex of the spire is pinkish; and the body-whorl has two spiral whitish or yellowish lirae, one above and the other below the middle of it, the former being visible on the penultimate and antepenultimate whorls. The aperture and columella are pinkish, the outer lip finely lirate within; and the columella has one or two rather indistinct plicae at the base. 40. MITRA MOSSTA, Reeve, Couch. Icon. ii. sp. 323. (Plate L. fig. 13.) Hab. Philippine Islands. Shell fusiform, turreted, olive-brown, sub rimate. Whorls 10 or 11, shortly tabulated above, but very slightly convex at the sides, spirally grooved with three narrow subequidistant sulci, the uppermost one at the top of the whorls, dividing off a thickened edge to the tabulation, which is channelled ; this thickened belt is of a brighter brown colour than the rest of the shell. Last whorl transversely sulcated throughout; sulci about 11 in number; a few of the superior ones, with the exception of the uppermost, more or less obsolete; those below the middle broader and deeper, leaving raised ridges or lirae between them. Aperture narrow, brownish within, a little less in length than half the entire shell; columella furnished with a thickish callosity, with a raised free edge forming in the umbilical region a slight fissure; plaits 4, the uppermost thickest, the others in turn by degrees finer; basal channel and tip of the whorl dark brown. Length 19 mill., diam. 6|. This species is remarkable on account of the turreted character of the spire. The tabulation of the whorls, however, is narrow and shallowly channelled. The Andaman specimen differs from the type in having the whorls more distinctly turreted; the spiral sulci are not so pronounced ; and the colour is somewhat different. In the type (which is a worn shell), the upper part of the whorls is white, whilst in the specimen above described it is light brown. 41. MITRA MARLE, A. Adams, Proc. Zool. Soc. 1851, p. 140. (Plate L. fig. 14.) Hab. Eastern Seas. In describing this species Adams writes, " labro intus sulcato." I have carefully examined the type specimens in Cuming's collection and also the Andamese shell, and do not find a trace of sulcation within the labrum of any of them, and therefore conclude that the observation of Mr. Adams was incorrect. The body-whorl has two broad purplish-brown bands indistinctly separated by a faint light zone occupying the greater part of the whorl. Beneath the suture there is a greyish-white band. The entire surface |
