452 On new Species and Varieties of Cataulus. 



yellowish ; lower parts yellowish, with a median series of 

 olive-brown spots which, after the anterior fourth of the bady, 

 become confluent into a band. 



Total length 355 mm. ; tail 50. 



A single male specimen from Dinawa, Owen Stanley 

 Ransre, Brit. New Guinea, altitude about 4000 feet; collected 

 by Mr. A. E. Pratt. 



LIV. — Descriptions of some new Species and Varieties of 

 Cataulus from the Collection of the late Hugh Nevill, Esq. 

 By Hugh Fulton. 



Cataulus rugosa, sp. n. 



Shell very narrowly umbilicate, subfusiform, moderately 

 solid, colour light yellowish brown, nucleus smooth, sculptured 

 below with somewhat nodulous oblique striae, which give a 

 malleated appearance to the shell; whorls 6^, moderately 

 convex; basal carina moderately produced ; aperture circular, 

 reddish brown within ; peristome yellowish, continuous ; basal 

 canal semicircular, situate at centre of basal portion of the 

 peristome. 



Maj. diam. 5 ; alt. 11^ mm. 



Loc. Ceylon. 



This form is nearest to C. marginatum, but is much smaller, 

 not so slender, and the suture is not margined. 



Cataulus Sykesi, sp. n. 



Shell narrowly umbilicate, subfusiform, solid, uniform light 

 j'ellowish to uniform reddish-brown colour, arcuately striated, 

 the strise rather blunt and not very conspicuous ; whorls 

 nearly 7, slightly convex; basal carina prominent, with a 

 conspicuous inner ridge ; aperture subcircular, reddish brown 

 within ; peristome whitish, very much thickened but scarcely 

 duplex, continuous ; aperture of basal canal subcircular, 

 situate slightly to the left of the centre of base of peristome. 



Maj. diam. (yellow form) 6^ ; alt. 14^ mm. 

 }J ,, (reddish-brown form) 6^; alt. 14 mm. 



Loc. Ceylon. 



This form bears a general resemblance to C. duplicatus, Pf., 

 but is smaller, has less whorls, and the suture of the earlier 

 whorls is not margined as in that species. 



