508 Lieut. -Col. Gocl\vin-Au.stea and Col. Beddome on 



witliin ; peristome white, well thickened in mature shells, 

 sharply reflected. 



.Maj. diam. Min.diam. Alt. axis, 

 mm. mm. mm. 



Type ol-O 25-75 150 



Col. Beddome's laro-est sp. 33-0 26-0 16-0 



Var. with red lip {aureo- 1 .^^.^ ^^.^ ^ -.5 



labriSj JNev.) . . .J 



Loc. Type from the Lahiipa Naga Hills, Munipur [coll. 

 Lieut.-CoL Godwin- Austen)^ and eastward to the Dihing. 



Lieut.-Col. God win- Austen found two specimens of this 

 species in the Lahiipa Naga Hills, in 1873 ; the late 

 Mr. Ogle sent him three from the neighbourhood of the Dihing 

 River, far to the eastward. Mr. Doherty obtained it in the 

 Naga Hills, and Col. Beddome lately recorded it from Mr. Mus- 

 pratt from Maokokchung, in the Naga Hills. In these eastern 

 hills this form takes the place of G. zehrinus of the Khasi 

 Hills &c., but it is much larger, the spiral ribbing is much 

 stronger, the whorls are more convex, and it is more openly 

 umbilicated. 



All the specimens in Lieut. -Col. Godwin-Austen's collec- 

 tion, and also those collected by Mr. Doherty, are white-lipped 

 shells; among the specimens received by Col. Beddome the 

 red-lipped j^redominate *. 



The coloration is very variable ; in some, as in the type, the 

 marbling occurs in tine zigzag lines far apart, in other 

 examples these are so closely run together as to give the shell 

 a beautiful ruddy colour. 



CycloijJwras ludtoni, sp. n. 



Shell somewhat depressedly turbinate, rather widely um- 

 bilicated, periphery rounded ; sculpture nearly smooth, under a 

 lens a fine, close, oblique, vertical striation is appai-ent, which 

 is obsoletely decussated with delicate spiral lines. Colour a 

 uniform dark ruddy brown or madder-brown above and on 

 the sides, but several narrow and two or three broader dark 

 longitudinal bands are distinguishable in a strong light, pearl- 

 white beneath. Whorls 5, the last very large, rather suddenly 

 increasing towards the aperture, the last three apical whorls 



* Nevill, in liis ' Hand-list,' 1878, p. 208, doet^uot sepamte the Eastern 

 forms, but names three specimens sent to the Indian Museum by Mr. tS. E. 

 Peal, from Sibsnpar, sis var. auit'o/a/>n's. He says, ••The larpe^t \ai'iety 

 I have yet seen and tlie only one witli a eoKuned peri>lome, in this case 

 a brilliant orange-colour." It may therefore stand imder the above uume. 



