1895.] BOEXEO AND yEI&HBOTTEIXG ISLANDS. 119 



. Only two specimens of this species were collected. It is about 

 •the same size as C. horneoisis, but differs from that species in colour, 

 in the much stronger spiral strise, and more rapidly enlarged whorls. 

 In one example the extreme edge of the peristome, which is reddish, 

 is quite sharp, but it is soon thickened on the outside by a con- 

 spicuous ridge. In the second specimen the lip is dirty whitish 

 and rather more expanded. 



60. Cyclophoeus cocheanei, Godwin- Austen. (Plate IV. 

 fig. 2.) 



Cycloj)7iojnts cochranei, G.-A., Proc. Zool. Soc. 1889, p. 334. 



Hab. Meri, Sarawak (C. Hose) ; Busau and IS^iah (.-1. Everett). 



This species has the body-whorl on the left side above the 

 periphery more or less flattened, and has rather a humpy or 

 shouldered appearance near the suture. This species, C. talhoti, 

 and C. borneensis probably pass one into the other, although the 

 representative forms are recognizable enough. 



Two of the specimens from Meri are of a pale pinkish-brown 

 colour, with a darker broad infra-peripheral zone. The third 

 example is entirely white beneath an olive epidermis. The latter 

 form closely resembles the variety ochracea. 



61. Leptopoma geoteochifoeme. (Plate IV. fig. 3.) 



Testa fere obtecte perforata, trochoidea, ad jjenpheriam acute 

 carinata,svhtusplaniuscula, alha; spira cmiica, amta ; anfractus 

 6, celeriter crescentes, leviter convecci, spiraliter tenuiter striati, 

 linekque incremenli obliquis,fiexuosis,termissimis sculpti, ultimus 

 supra et infra carinam concave compressus,anticehaudd(scendens; 

 apertura subcircularis ; peristoma duplex, margine e.vterno tenui 

 expanso, ad angulum acuminato, latiore supra quam infra, 

 interna continuo, paulo incrassato. 

 Diam.maj. 22 millim., min. 17, alt. 20 ; apertura intv.s 9 longa, 



9| lata. 

 Hab. Mount Eabong, West Sarawak. 



This species has a considerable resemblance to L. undatum, 

 Metcalfe, and L. niahense, Godwin-Austen'. 



It is at once distinguished from the latter by the absence of the 

 constriction behind the labrum, the double peristome, the almost 

 concealed umbilicus, the more convex whorls, and slightly finer 

 sculpture. L. undatum also has the body-whorl constricted behind 

 the lip, but the peripheral keel becomes obsolete a little from it, so 

 that there is hardly any acumination on the right of the aperture 

 as in the present species and L. niahense. L. undatum is more 

 openly umbilicated and has not a double peristome. 



62. Leptopoma skeetchlti. (Plate IV. fig. 4.) 



Testa L. undato similis, sed minor, carina peripJierali usque ad 

 labrum continua,anfractu ultimo pone aperturamhavd constricto, 

 1 Erroneously described as a Helia- of the section Geotrochus (Proc. Zool. Soc. 

 1891, p. 44). 



