MOLLUSCA OF INDIA. 45 
Shell rather more tumid in form; colour ochraceous, with a 
strong green tint; whorls 8; columellar margin nearly straight, 
compared with type. 
Size (specimen figured): major diam, 9°25; length 26-25 mm, 
GressuLa (RisHErIA) BURRAILENSIS, G.-A., var. (Plate CLX. 
fig. 3.) No. 1586 B.M. 
Locality. Japvo Peak, Naga Hills, at 8-9000 feet (Godwin- 
Austen), 
Shell much more slender in form ; apex blunt, shining ; sculpture 
well marked, regular striation, extending to the apex; colour 
strong ochraceous, with a greenish tint; spire elongate, sides 
flatly convex, suture impressed; whorls 94; aperture ovate ; 
peristome on outer margin slightly thickened; columellar margin 
slightly concave. 
Size (specimen figured): major diam. 7:0; length 25:25 mm. 
Plentiful in the forest, covering the Peak on all sides. 
GuessutaA (RisHETIA) Buruert, G.-A. No. 1583 B.M. (Plate 
CLX. fig. 9.) 
JeAc oe be xiiv. JS7o, p. 4) pl. i. fig. 7. 
Locality. Kastern Burrail Range ( Glodwin-Austen). 
Original description :—* Shell elongately turreted, very thin and 
brittle, tumid, pale corneous, glassy, very minutely striated, 
apex very blunt; whorls 8, rather rounded, suture deep, body- 
whorl much swollen and capacious; aperture vertical, pear- 
shaped, lip rather thin. 
* Alt. 1:13, major diam. 0°45 in, 
“ Hab. Kastern Burrail Range, at 6000 feet; not a common 
form. 
“I name this shell after Captain J. Butler, Political Agent 
in the Naga Hills, with whom I had the fortune of being 
associated when mapping that very interesting and beautiful 
district.” 
Size: Largest specimen, major diam, 12°75; alt. axis 28:0 mm. 
Specimen figured, 3 TO); 3 2OrZS ,, 
Proportion of length to body-whorl, 100 : 54. 
Guiussuta (RisHETIA) BURRAILENSIS, Var. MAXWELLI. (Plate CLX. 
figs. 5,6.) No. 1717 B.M. ° 
Locality. Naga Hills, exact locality unknown, but East of 
Kohima (Col. H. St. P. Maxwell). Somra, Khulen Post. West of 
Kyendwin or Chindwin River, Upper Burma (Ff. Hide). 
Shell elongately turreted; sculpture coarse, close, irregular 
ribbing (fig. 6); colour rich sienna-brown (fig. 6); spire long, 
sides nearly flat; 100.47°6; suture shallow; whorls 10, sides 
nearly flat ; aperture narrowly oval, outer lip strong; columellar 
margin nearly straight, solid. 
