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Show 406 MR. E. A. SMITH ON SHELLS FROM ADEN. [June 16, colour and slightly in form. The labrum in that species is white within and without, and much more strongly transversely striated externally than in the present species. The latter also is a stouter shell, broader across the body-whorl at the shoulder, and consequently the spire is much more acuminate. C. fabula, Sowerby, and C. pardalina, Lamarck, are also allied species. 41. COLUMBELLA (ANACHIS) MISERA, Sowerby. Hab. Andaman Islands, Japan, Sandwich Islands. With this species Tryon (perhaps rightly) unites C. zebra, Gray, and C. pacifica, Gaskoin. A shell from the Andaman Islands which I described (P. Z. S. 1878, pi. 50. f. 6) under the name C. nigricosta, I now believe to be the same as C. misera. 42. COLUMBELLA (CONIDEA) FLAVA (Bruguiere). Hab. Indian Ocean, Mauritius, Reunion, Seychelles, Singapore, Japan, &c. The Aden shells are of a purplish-brown colour variegated with whitish dots and wavy streaks. The inner dentate portion of the labrum and the columella, with the exception of tbe upper part which is white, are rose-purple. The epidermis has a somewhat silky appearance and is disposed in longitudinal close-set shreds. 43. ENGINA (PUSIOSTOMA) MENDICARIA (Linne). Hab. Red Sea, Zanzibar, Mauritius, Madagascar, Amirantes, Philippines, Australia, Polynesia. Gulf of Akaba, Christmas Island, Mergui Archipelago, Solomon Islands (Brit. Mus.). 44. EBURNA VALENTIANA, Swainson. Hab. Red Sea and Persian Gulf. Aden (Jousseaume). This is not the Nassa molliana of Chemnitz as supposed by Sowerby * and Tryon2. Chemnitz describes his species in the fourth volume of the ' Conchylien-Cabinet,' pp. 15-18, and figures it on pi. 122. fig. 1119. The shell there depicted is the well-known E. zeylanica. Sowerby evidently never read Chemnitz's text, but appears to have been led into the error through Chemnitz having inadvertently put the name Nassa molliana (p. 13) to figure 1118. On page 6 it is referred correctly to figure 1119. 45. BULLIA MAURITIANA, Gray. Hab. Madagascar (Gray) ; Aden (Caramagna). I quite agree with Tryon iu uniting B. grayi, Reeve, with this species. The beautiful specimens collected at Aden by Major Yerbury are of a livid colour, glossy, with the basal carina and the aperture of a dark rich brown, and the spot at the termination of the sutural callus is also deep brown. The largest specimen is 52 millim. long, whilst the gigantic example referred to by Reeve under B. grayi, which has been in the Museum fifty years, is 64 millim. in length. ] Thesaurus Conch, vol. iii. p. 69. 2 Man. Conch, vol. iii. p. 213. |