178 M. M. SCHEPMAN, LAND- AND FRESHWATER MOLLUSCA ETC. 



CyclotuS Guilding. 

 1. Cyclotus guttatus Pfeifter. 



Pfeiffer. Proc. Zool. Soc. Lond. 1851, p. 251. 



„ Martini-Chemn., Conch. Cab., Ed. II, Cyclostomacea, p. 333, PL 43, fig. 15, 16. 



Tapp. Caxefri. Fauna Mal. New Guinea, p. 24g. 



Aru Islands. Fenuabori River. Dec. 5, 1907. 



Of the three spécimens one is much bleached, 2 are rather young, consequently some- 

 what doubtful; the operculum is wanting. 



Lagochilus Blanford. 

 1. Lagochilus gudei n. sp. PL V, fig. 9. 



Shell depressedly turbinate, carinated, umbilicated, whitish, with red-brown zigzag-flam- 

 mules, forming subquadrate spots below the suture and on many places of the shell, whorls 

 about 5 '/ 2 , nuclear ones dark brown, with a whitish top, the whole shell covered with a 

 deciduous, yellowish epidermis, whorls moderately convex, last one descending near the aper- 

 ture. Sculpture consisting of a rather prominent keel, visible on the post-nuclear whorls, just 

 above the deep suture, the last whorl is uni-lirate below the keel, and the last and part of 

 penultimate whorl, hâve about 12 spirals, of which there is but one on the upper ones; the 

 whole shell is crossed by conspicuous growth-striae. Aperture subcircular, slightly angular 

 above; peristome double, its outer margin rather thin, moderately reflected, very narrow along 

 the columellar side, interior margin projected, nearly straight, slightly incised in its upper 

 part. Operculum ? Umbilicus pervious, moderately wide, slightly covered by the peristome. 



Diam. maj. 15, ait. 1 1 ' '., ; apert. ait. et lat. 6 mill. 



New Guinea. Resi Ridge, Aug. 30, 1907. 



Though the spécimens are quite destitute of hairs, I hâve located the species in the genus 

 Lagocliilus, as the aperture agreed well with that of this genus, the spécimens are dead, so 

 no hairs could be expected, I know no species which is nearly allied ; L. papuanus Smith has 

 a quite différent sculpture; in shape it resembles L. bunguranensis Smith, but that species is 

 much less depressed and has no keel etc. ; in colour it is quite différent. 



Fam. CVCLOSTUMIDAE. 



Adelomorpha Tapparone Canefri. 



1. Adelomorpha lorentzi n. sp. PL V, fig. 10. 



Shell turbinate, with acute spire, umbilicated, reddish-fulvous, thin. Whorls 5 1 /, or 6, 

 very convex, especially the last one, which is slightly dilated, rendering the outline concave, 

 separated by a deep suture, slightly descending near the aperture. Sculpture consisting of 

 microscopic, oblique lines of growth, stronger at intervais, crossed by similar spirals on the 

 post-nuclear whorls, last whorl rounded. Aperture subcircular, angular above, peristome thin, 

 straight, columellar margin reflected, near its base with a small auricle, partly covering the 

 narrow umbilicus, margins connected by a thin laver of enamel. 



