MOLLUSC A OF INDIA. ; 



" Two specimens from Klang Sing, Naga Hills, are rather more 

 tumid. 



" I name this after Capt. John Butler, who was the Political Agent 

 accompanying the Survey party on our exploring work, and who 

 unfortunately lost his life in an ambuscade laid by a hostile clan, 

 when the Survey work was again being prosecuted further east 

 under Lt. Woodthorpe, R.E. Butler was a splendid officer for such 

 a frontier, and the Survey owed much to his untiring aid and to the 

 interest he took in its proper extension." 



DiPLOJiMAXiNA ELOK&ATA, Godwiu-Austcu. (Plate LXIV. fig. 6.) 



Diplommntina eloH<jata, G.-A. P. Z. S. 1892, p. 511. 



Diplouimatina tiimida, var., G.-A. Journ. A. S. B. vol. xliv. pt. 2 

 (1875), p. 0, pi. iv. fig. 7. 



Original description : — " Shell elongately fusiform, thin, pale 

 yellowish green ; sculpture very faint above, quite smooth on the 

 last three whorls ; spire attenuate, sides flat ; suture moderate ; 

 whorls 8| to 9, the antepenultimate the largest; constriction in 

 front above the aperture ; last whorl ascends slightly ; aperture oval, 

 vertical ; peristome double, thickened, slightly reflected ; columellar 

 tooth small and remote. Alt. 0-22; diam. 013 inch. 



'■'Localifi/. Ke/.jikenomih, Naga Hills. 



" This shell is a better type of this form of Diplommatina than 

 the very tumid shell first described from Asalu ; the form changes 

 much in different localities, in some being much more solid and mor« 

 distinctly and distantly sculptured near the apex ; a variety from the 

 Eastern Burrail is 0"-20 in alt., rich dark amber-coloured, has the 

 three lower whorls smooth and glassy, the columellar tooth still 

 more remote, and the constriction just behind the peristome ; it 

 departs so widely from the original type that it might almost be 

 separated." 



The typical shells of my D. fiunida (J. A. S. B. xxxix. (1870), 

 pt. 2, p. 6, pi. ii. fig. 2) (which is badly copied from my drawing) 

 came from Nenglo, in the North Cachar Hills, not far from Asaloo 

 (see Plate LXIV. fig. 5). As I collected eastward the form changed, 

 so that in the longitude of Munipur it does not correspond with the 

 original type, but it is not so distinctly different as D. elonrfcita. 

 On Nougmaiching Peak (5135 ft.), which is a conspicuous point 

 seen from Imphal, the capital of Munipur, and lying to the east of 

 the valley, a small form occurred, with the peristome less circular, 

 the form less tumid, and quite smooth on the last whorls. On 

 Laisen Peak, 5173 ft., in the mountains to the north of Munipur, I 

 found another variety slightly differing from this. 



Diplommatina tpmida, var. (Plate LXIV. fig. 7.) 



Diphmmatina tumida, var., G.-A. P. Z. S. 1892, p. 512. 



Locality. Nougmaiching Trigonometrical Station, Munipur (type 

 figured). 



Original description : — " Shell dextral, elongately fusiform, not 

 rimate ; sculpture, fine costulation on the 5 apical whorls, the last 



