468 - ■ 



3- Atys multistriata n. sp. PI. XXXII, fig. 2. . 



Stat. ij. Sailus ketjil, Paternoster-islands. 27 M. and less. Coral and coralsand. i Spec. 



Shell elongated, with slightly convex sides, attenuated above, thin, transparent white; 

 sculpture consisting of growth-striae, which are rather coarse in some parts of the shell and 

 especially towards the spire, where they are more crowded, being more remote and fold-like 

 on the rest of body-whorl; the whole shell is covered with fine spiral striae, very fine and 

 nearly microscopic on the central part, more conspicuous towards the extremities. Spire umbilicated, 

 enamelled, with a rounded border. Aperture very narrow above, larger below, lip rising from 

 the vertex, arched but not contorted, forming a regular sinus above, outer margin slightly 

 convex, thickened interiorly, basal margin forming a compressed sinus, columellar side scarcely 

 enamelled on the slightly convex body ; columella short, slightly concave, with a small, contorted 

 fold at its base, making it slightly truncated; behind the columella an elongated, narrow, 

 umbilical slit is bordered by a rounded margin. 



Alt. from spire to base of aperture 10^4, lat. 5Y4, apert. alt. 1 1^4, lat. above Ys, below 2 Mill. 



This specimen, on account of its thickened peristome, seems to be adult; in shape it 

 much resembles A. cylindrica Helbl. v. elongata^ but it differs from that and most other 

 species, by its spiral striae over the whole shell, it is not allied to that species; the folded 

 columella locates it in the section Atys s. str. 



4. Atys tortuosa A. Adams. , 



Adams. Thes. Conchyl. Vol. II, p. 587, PI. 125, fig. 120. 



Reeve. Conch. Ic. Vol. XVII, Atys, fig. 15. 



PiLSBRY. Man. of Conch. Vol. XV, p. 264, PL 23, fig. 66, ^j. 



KOBELT. Martini-Chemn. Conch. Cab. Ed. II, Vol. I, Bullacea, p. 25, PI. 8, fig. 7, 8. 



Stat. 184. Near Kampong Kelang, South coast of Manipa-island. 36 M. Coral, sand, i Spec. 

 Stat. 260. Near North point of Nuhu Jaan, Kei-islands. 90 M. Sand, coral and shells, i Spec. 



5. Atys subtortMOsa n. sp. PI. XXXII, fig. 3. 



Stat. 4. Djangkar (Java), 9 M. Coarse sand. 4 Spec. 



Stat. 172. Gisser, Reef, i Spec. 



Stat. 193. Sanana-bay, East coast of Sula Besi, 22 M. Mud. I Spec. 



Stat. 285. South coast of Timor. 34 M. Limit between mud and coral. Lithothamnion. i Spec. 



Shell convexly-oval, attenuated and contracted above, narrow below, thin, fragile, white. 

 Sculpture consisting of very fine growth-striae and at both ends, strong spiral striae, which are 

 not crowded, though a httle closer at the extremities; a median zone, scarcely a third part of 

 the total dorsal length, remaining smooth, except for excessively minute, spiral striae, traceable on 

 nearly the whole shell, under a very strong lens. Spire concave, with a small enamellous 

 centre, bordered by a rounded, opaque, white rim; below this rim the shell is slightly contracted. 

 Lip from its inferior to upper part, slightly contracted, forming an angle at its junction with 

 the outer margin, by the ending of the circum-apical rim; the outer margin at first concave 



16 



