322 



DESCEIPTIONS OF NEW SPECIES OF STEEPTAXIS, PLANISPIRA, 

 AND CHLORITIS. 



By Hugh C. Fultox. 



Read II th June, 1915. 



Streptaxis gudkf, n.sp. 



Shell glassy-white, moderately umbilicated, obliquely ovate ; 

 whorls 5^, closeh" arcuately costulate above, the costfe being stronger 

 at the suture and gradually weakening below, last whorl with short 

 inconspicuous costse or strife at the suture only ; interior of aperture 

 armed with six plicae or tubercles, one prominent entering fold at 

 centre of the parietal wall, with a smaller one above and parallel to 

 it ; two nodules are situated on the right inner margin of the 

 peristome, the upper one being very small, the lower prominent ; the 

 remaining two are at centre of base ami centre of the columella lip, 

 the latter being the broader; peristome thickened and somewhat 

 expanded ; interior of umbilicus shai-ply obliquely struited. M;ij. 

 diam. (including peristome) 8, height 6 mm. 



Hah. — Pac Klia, Tonkin (Col. !Messager). 



Var. minor. Maj. diam. Q-b, height 5 mm. 



Hah. — Lao Kay and Muong Kong, Tonkin (Col. Messager). 



The form niitior is somewhat similar in size and in the arrangement 

 of its armature to St. heiidei, Schm. & Bottgr., and St. paulus, Gude 

 (two scarcely separable forms), but both of those are distinguished 

 by their smooth whorls. 



i^amed in honour of G. K. Gude, Esq., F.Z.S., whose valuable list 

 of the species of this genus (Proc. Malac. Soc, vol. v, pp. 201-44, 

 1902 ; pp. 322-7, 1903) is very helpful. 



Planispira subatacta, n.sp. 



Shell narrowly umbilicated, moderately solid, ovately depressed, 

 ground colour cream, with five reddish-brown spiral bands on the 

 last whorl, one situated at the periphery, one encircling the umbilicus, 

 and tliree narrower ones above which ascend towards the apex ; 

 whorls 4^, convex, with conspicuous raised oblique strise, the last 

 whorl constricted behind the aperture; aperture oval, outer bands 

 showing through the interior; peristome slightly expanded, whitish. 

 Max. dimensions — width 19, height 9 mm. 



Hah. — ^\"est Celebes. 



