471 

 2. Dinia fnuiiatu/a n. sp. PI. XXXII, fig. 5. 



Stal. 95. 5°43'.5 N., i i9°4o' E. Sulu-archipelago. 522 M. Stony bottom. 2 Spec. 



Shell small, elongately-oval, narrower at its upper part, strongly truncated above, 

 moderately strong, white, smooth. Sculpture consisting of very fine growth-striae and a few 

 spiral striae which are rather faint and not crowded, near the base. Spire umbilicated, rather 

 wide and deep, showing the whorls, about 3 in number, not enamelled, bordered by a rounded 

 margin, divided by a single spiral groove; body-whorl nearly straight above, then convex. 

 Aperture elongated, narrow above, large below; upper margin of peristome forming a small, 

 rounded sinus, outer margin nearly straight, even slightly contracted above the middle, then 

 slightly dilated; basal margin rounded. Columellar side of body-whorl conve.x, covered with a 

 thin layer of enamel, columella short, concave, with a tooth-Iike fold at its basal part; no tracé 

 of umbilicus. 



Alt. from margin of spire to base of apert. 3Yj, lat. 2 ; apert. alt. 3''/^, lat. above Y^ 

 below 27, Mill. 



This species may be distinguished from D. dcntifera and monodonta, by its strongly 

 truncated spire and by being attenuated at the upper part, monodonta being more cylindrical, 

 dentifcra regularly oval. One specimen is slightly worn, but has the tooth-like fold more con- 

 spicuous, than that which has served for description. Both specimens are empty .shells, consequently 

 it is not certain that they have lived at the recorded depth. 



Cylichna Loven. 



1. Cylichna javanica n. sp. PI. XXXII, fig. 6. 



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



Shell subcylindrical, slightly narrower above then below, truncated above, upper part 

 of sides and base rounded; rather strong, white, partly covered by a dark brown epidermis. 

 Sculpture consisting of hair-like growth-striae, stronger at irregular intervals, and of numerous, 

 irregular, waved, spiral striae, more crowded at some places, stronger near the base, where they 

 have the appearance of lirae. Spire deeply umbilicated, bordered by a sharp keel. Aperture 

 elongated, narrow above, dilated below, its upper margin being the continuation of the um- 

 bihcal keel, a little ascending, outer margin at first rounded above, then nearly straight, broadly 

 rounded below and at the base of shell. Columellar side nearly straight at body-whorl, rounded 

 above, with a narrow but conspicuous layer of enamel ; columella thick, rounded, slightly con- 

 torted, nearly straight above, concave below, with an umbilical slit behind it. 



Alt. from margin of body-whorl to base of apert, óy^, lat. 2^^; apert. alt. ó^^, lat. 

 above nearly Y^, below lYi Mill. 



I know no East-Indian species which is nearly allied. 



2. Cylichna sp. 



Stat. 2. Madura-strait. 67 M. Grey mud with some radiolariae. i Spec. 



19 



