Report on the zoological collections made in the Indo-Pacific Ocean ...

502 COLLECTIONS FROM THE WESTERN INDIAX OCEAN.the nodules. Whorls 16, straight at the sides, encircled abore atthe suture with a prominent series of acute tubercles, and belowthese by two or three other rows, Avhich are much less elevated anddistinct ; they are also spirally striate-sulcate. The body-whorlhas a swelling (scarcely a varix) on the left side opposite the outerlip, terminates in a narrow and much recurved canal, and is sculpturedwith about ten narrow sulci. Columella bearing a conspicuouscallus reflesed over the cauda, and armed within with a single submedianplait. Aperture oblique, produced above into a short, naiTowchannel. Labrum only a very little thickened. Length 30 millim.,diam. 9.Seychelles, in 4-12 fms., and Cerf Island, Masearenes, in 10 fms.This species bears some resemblance to C. articulatum, Adamsand Eeeve, especially as regards the aperture. It may bo distinguishedby the prominent row of acute nodules just below thesuture, the corresponding series in C. articulatum being smaller, sothat the whorls at this part are narrower than below, whilst, on thecontrary, in the present species they are widest./70. CeritMum (RMnoclavis) kocM, PMlippi.Poivre Island and He des Roches, Amirantes, in 13-20 fms.71. Triphoris mirificus. (Plate XLIV. figs. T-T\)Beshmjes, Moll. Reunion, p. 104, pi. 11. figs. 32,33.Etoile Island, in 13 fms.This is a most curious species, on account of the prominent canalbehind the aperture. The apex of the spire in the single specimenat hand, consisting of four whorls, is yellowish brown and finelycancellated instead of noduled like the rest of the shell.72. Triphoris monilifer.Hinds, Vorj. ^ Sidphur; p. 30, pL 8. fig. 14.Etoile Island, in 13 fms. ;Straits of Malacca (Hinds).73. Triphoris elegans.Hindfs, Voy. * Sulphur,^ p. 29, pi. 8. fig. 1].Distribution the same as preceding species.74. Triphoris maxillaris.Hinds, Votj. ' Sulphur; p. 29, pi. 8. fig. 8.Darros Island, in 22 fms. ;also Straits of Malacca {Hinds).Marie-Louise Island.75. Strombus mauritianus, Lamarck.