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Show 448 LT.-COL. H. H. GODWIN-AUSTEN ON THE LAND- [May 21, by de RoepstorfE. I have not seen it; it is recorded in Nevill's MS. copy of the ' Hand-list.' Genus SITALA. 2. SITALA HAROLDI, G.-A. Moll. Ind. p. 33, pi. x. figs. 7, 7 a (p. 442). This species is no. 200 of Nevill's ' Hand-list (p. 41); his Microcystis stewartiana, MS., but never described. Nevill gives its locality as Little Brother Andaman and Katchal, from de Roepstorff. No. 208 in the ' Hand-list' from Batte Malve, Nevill thinks is the same species. 3. SITALA HOMFRAYI, n. sp. (p. 442). Locality. South Andaman {de Roepstorff). Shell dextral, pyramidal, turreted, flat on base, imperforate; sculpture coarse transverse striation, with two ribs on the periphery and fine spiral close ribbing on the apical whorls ; colour horny o-rey ; spire conic; apex blunt and papillate ; suture shallow ; whorls 4^, sides angulate, a strong raised rib on the periphery of the last whorl, and another similar rib above it at the angulation of the whorl, above the vertical portion ; aperture ovately quadrate, very oblique; peristome thin, slightly thickened; columellar margin vertical. Fig. A. Sitala homfrayi. X 1*3. Size : maj. diam. 1*4 ; alt. axis 1*4 mm. This is a form allied to Sitala subbilirata and £. tricarinata, is of the same minute size as the latter, but it differs from it in the pyramidal form and smaller narrower aperture. It occurred among a lot of small shells. I name it after Mr. Homfray, whose name is so well known as a first worker among the aboriginal inhabitants of these islands. Genus Discus. 1, Discus SANIS (p. 442). Nevill, in a MS. note, says " animal throughout of a jet-black colour." 3. DISCUS ANDAMANICA (p. 442). Nevill describes this species as follows :-" The animal is quite different from that of T. sanis, being throughout whitish with grey tentacles. Shell more deeply solariformly umbilicate, bordered by an acute keel; spire more raised; whorls more closely wound ; ot lighter colour." |
