456 



2. Chloritis conjecta Smith. 



Smith. Ann. and Mag. Nat. Hist. Ser. 7, Vol. Ill, 1899, p. 410. 



Stat. 53. Waingapu, Sumba. 6 Spec. 



The specimens differ from Smith's description in being smaller, not surpassing 14 Mill. 

 in their largest diameter, but otherwise they perfectly agree. 



Rhagada Albers. 

 I. Rhagada colona v. Martens. 



V. Martens. Monatsbericht der Konigl. Ak. der Wissensch. zu Berlin, 1877, p. 272, PI. i, 



fig- 4> 5- 

 Tryon/Pilsbry. Man. of Conch. 2d Series, Vol. VI, p. 190, Vol. IV, PL ^6, fig. 37, 38. 



Stat. 58. Seba, Savu. 9 Spec. 



The majority of the specimens is slightly larger than v. Martens' type, the largest having 

 a diameter of 12^3 Mill, instead of 11, an altitude of 8Y2, instead of 7 Mill, and is less 

 depressed in shape ; only 2 specimens have the bands quite hyaline, in the other ones a con- 

 spicuous brown peripheral band and a narrow subsutural one of the same colour, distinguish 

 them from a specimen formerly received of v. Martens; as however these differences are more 

 gradual, as a few specimens are of the typical size, shape and colour of bands, and the 

 characteristic sculpture, consisting of strong ribs on the upper surface, with a nearly smooth base, 

 agree with v. Martens' description, there is, I think, no doubt that they belong to the same 

 species, which came from Dana, an island southwest-wards from Savu. 



PlectOtropis v. Martens. 



I. Plectotropis kangeangensis n. sp. PL XXXI, fig. 2. 



Stat. 16. Bay of Kankamaraan, South coast of Kangeang. 2 Spec. 



Shell widely umbilicated, carinated, convexly depressed, thin, fragile, opaque, white. 

 Whorls 4, rapidly increasing, slightly convex above, with a slight depression near the suture, 

 which is conspicuous, more so as the keel is prominent on penultimate whorl. Nucleus not coii- 

 vex, nearly smooth, but under the lens with very fine wrinkles ; on the second and subsequent 

 whorls, the sculpture consists of stronger, radial striae, nearly riblike in some parts, crossed by 

 fine, spiral striae; last whorl with a conspicuous, though not sharp, compressed keel, fainter 

 near the aperture, basal part of last whorl much more convex than upper part, with the same 

 sculpture, though a little less coarse. Aperture oblique, angularly lunar, its upper and basal 

 margins convex, columellar margin nearly straight (damaged), joined with the basal one by an 

 obtuse angle; peristome rather thin above, slightly expanded, thicker and narrowly expanded 

 near base. Umbilicus rather large, pervious, funnel-shaped, bordered by an obtuse angle. 



Diam. maj. lyYsi ^It. 10 ; apert. alt. 5; diagonally 7, lat. 6Y2, umb. lat. 6Y3 Mill. 



Unfortunately this interesting new species is not represented by an intact specimen, one 



4 



