species of Helicarion, d-c. 93 



immerous impressed spiral linei5, wliich can easily be seen 

 witliout a lens; whorls 6^, moderately convex, slightly 

 depressed at suture of lower whorls, last descending ; aperture 

 subcircular, almost white within^ outer band showing clearly 

 through ; peristome moderately expanded, margins brown. 



]\Iaj. diam. 34 ; alt. 27 mm. 



Hah. ? Probably Saghalien Island {Keppel Coll.). 



In form and coloration somewhat similar to E. miranda. 

 Smith, but more globose, and readily separated by its spiral 

 sculpture. I had thought that it might possibly be a large 

 form of E. serotina, Ad. ; but Mr. G. K.Gude, who possesses 

 a co-type of that species, kindly informs me that E. serotina, 

 besides being smaller, is much smoother, its spiral sculpture 

 is much weaker and the lines closer together. 



Cijdotus {Eucyclotus) amcibilis^ sp. n. 



Sliell broadly umbilicated, depressed, solid, finely obliquely 

 striatedj some of the striie very conspicuous on underside of 

 last half-whorl, yellowish brown, ornamented with short and 

 rather distant narrow stripes (sometimes zigzag) of darker 

 brown, these becoming obsolete on the last half-whorl ; spire 

 slightly raised ; whorls 5, convex, regularly increasing ; 

 aperture circular, whitish ; peristome double at outer, single 

 at coluraellar portion, the outer peristome being expanded at 

 the upper part and forming a short canal at its termination ; 

 operculum shelly, slightly concave, having 12 whorls. 



Maj. diam. 26; alt. 12 mm. 



Hab. N. Borneo ( Waterstradt). 



Chiefly distinguished from other species known to me by 

 its large oblique aperture and well-produced Pterocyclus-WkQ 

 channel at upper junction of the peristome. 



Lagochilus proprium^ sp. n. 



Shell moderately umbilicated, globosely turbinate, yellowish 

 brown, ornamented on last two whorls with narrow, oblique, 

 yellowish stripes ; whorls 5^, very convex, finely striated, 

 with four spiral threads or lirse on last whorl, tiie upper one 

 ascending the penultimate whorl ; aperture circular ; peri- 

 stome narrowly expanded, operculum normal. 



Maj. diam. 6f ; alt. 7 mm. 



Hab. Borneo {Keppel Coll.). 



At first I thought that this characteristic Lagochilus might 

 be L. Keppeli, Godw.-Aust., but that species has more spiral 

 threads and the peristome is more expanded. Some specimens 

 are of a uniform rather light yellowish-brown cojjur, the 

 stripes being absent. 



