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Show 1881.] SOCOTRAN LAND-SHELLS. 811 and rather rapidly tapering at the fifth whorl; suture shallow, ad-pressed ; whorls 10, somewhat convex; aperture elongately oval, subvertical; peristome thin; columellar margin thin, straight. Size:- Major diam. 0*34, alt. axis 0*97, alt. apert. 0*27 inch. „ „ 8*5, „ 24*8, „ 7*0 millim. Locality. [This shell I only found in one locality, east of Hadibu, near a place called Adona, altitude over 1500 feet, rock granite.- B.Bf\ This shell approaches somewhat in its general form to B. magi-lensis, Craven, from Magila, East Africa. 23. STENOGYRA (SUBULINA?) ENODIS, n. sp. (Plate LXIX. fig. 5.) Shell dextral, elongately turreted, not rimate, very thin, glassy, diaphanous; no sculpture; colour milky white; spire long, apex blunt and rounded, suture moderately deep ; whorls 9, sides convex, regularly increasing; aperture quadrate, subvertical (not fully formed); peristome thin ; columellar margin straight, vertical. Size :- Major diam. 0*17, alt. axis 0*54, alt. apert. 0*12 inch. „ 4*0, „ 13*0, „ 2*8 millim. Locality. [South side of the island, from limestone rocks, altitude 1000 feet.-B. B.~] Only one specimen was found. 24. STENOGYRA (OPEAS?) HIRSUTUS, n. sp. (Plate LXIX. figs. 6, 6 a.) Shell dextral, elongately turreted, scarcely rimate, covered with a thick epidermis; sculpture a rough surface with regularly disposed longitudinal lines of fine hairs ; colour dull ochre ; spire elongate, sides flat, apex blunt, suture well impressed; whorls 11, sides slightly convex ; aperture oval, oblique; peristome thin ; columellar margin thin, slightly reflected. Size :- Major diam. 0*12, alt. axis 0*45, alt. apert. 0*8 inch. „ 3*0, „ 11*0, „ 2*0 millim. Locality. [Found underneath granite boulders on hills above Adona, altitude over 2000 feet.-B. _S.] Only one specimen of this beautiful hairy shell was found. EXPLANATION OF THE PLATES. PLATE LXVIII. Fig. 1, 1 a. Buliminus (Achatinelloides) socotrensis, Pfr., p. 802. 3 2. Buliminus (Achatinelloides) socotrensis, var. elongatus, p. 803. 3 3 a. Buliminus (Achatinelloides) hadibuensis, n. pp., p. 803. 3 b, right side of base, showing rimation. |