1. North-West Himalaya. 
LAND AND FRESHWATER 
(No species as yet found), 
Distrrsurion oF THE Genus GLESSULA IN THE GANGETIC Devt, 
Norra East Frontier oF [npia, anp Burma. 
2. Sikhim and the Teesta Valley, with Western Bhutan, 
including the Delta. 
Long. 88° to 89° East. 
Glessula ( Rishetia) longispira, n. sp. a 
baculina, Henry Blanford. Pl. 
var. exilis. 124 
rissomensis, N. Sp. 
hastula, Benson. 
roberti, n. sp. 
CLIX. figs. 1, 2. 
OLIV. figs. 1-le. 
CLIX. fig. 7. 
. CLIX. figs. 13, 14. 
. CLIX. fig. 6. 
. CLIX. figs. 16, 17. 
. CLXIILZ. figs. 9, 9 a. 
. CLXITI. fig. 10. 
rarhiensis, n. sp. Pl. CLXIL. fig. 28. 
Glessula ochracea, Godwin-Austen. Pl. CLX. fig. 8. 
orobia, Benson. Pl. CLXII. figs. 5, 6 
var. major, Pl. CLXIL. fig. 7. 
small yar. Pl. CLXII. fig. 9. 
(Pi: 
CLXII. fig. 24. 
| Pl. 
crassula, Reeve. CLXIV. figs. 14, 15. 
From the Delta. 
Glessula sarrissa, Bs. 
gemma, Bs. 
var. minuta, G.-A. 
Ie 
Al 
CLXI. fig. 10. 
CLXI. figs. 26, 27 
a =ts 
28, 29. 
GrissuLa (RISHETIA) LONGISPIRA, n. sp. 
(Plate CLIX. figs. 1, 2, 
shells; Plate CLXV. figs. 1-1 ¢, anatomy.) 
No. 552 BM. 
Locality. Risett Chu, Sikhim (Wm. Robert). 
Shell clongately turreted; sculpture: fine, regular and rather 
coarse striation ; colour ruddy ochraceous; spire very long, sides 
straight, apex attenuate: suture shallow; whorls 13, sides flat, 
proportion of length to last whorl 100: 34; aperture small, oval ; 
peristome thin ; columellar margin slightly convex. 
Size: maj. diam. 9°5; length 44 mm. 
In the Blanford collection (No. 238.06.2.2) one specimen measured 
47°5 mm. in length, and is the largest I have seen. 
Shell of animal dissected 40 x 94 mm.; whorls 13 (No. 552 
B.M.). 
The generative organs (Pl. CLXY. figs. 1a, 16).—These are 
naturally very elongate and twisted; the hermaphrodite duct is 
long and closely coiled. The albumen gland elongately oval, uterus 
and oviduct very long, compact, cylindrical, the oviduct showing 
broad, close convolutions (follicles). The penis is a simple sheath, 
