12 



LAND ANU F1U'SIIW\TER 



^ . N^orth-TVest irtmaJaija, (No species as yet found). 



DlSTlUBnTION OF THE GeNUS GlESSVLA IN THE GaXGETIC DeLTA, 



NoRTJi East Frontier of India, and JiuKMA. 



2. Sihliiin and the Te.esta ValJei/, with Western Bhutan, 

 includimj the Delta. 



Long. 88° to 89° East. 



Glrssula {Rishetia) longhpira, n. sp. -I „,' nt-tv' f"^' i i" 



4a6'«/w8a, Henry Blanf'ord. PI. CLIX. fig. 7. 



Tar. exilis. PI. CLIX. figs. 13, U. 



rissomeyisis, n. sp. PI. CLIX. fig. C. 



. , , T, f PI. CLIX. fijs. 16, 17. 



{ PI. ULXIII. figs. 9, a. 

 roherH, n. sp. PI. CLXIII. fig. 10. 



rarhiensis, n. sp. PI. CLXII. fig. 23. 



Glcssida ochracea, Godwin-Austen. PI. CLX. fig. 8. 



orohia, Benscm. PI. CLXII. figs. 5, 6. 



var. major. PI. CLXII. fig. 7. 



small var. PI. CLXIT. fig. 9. 



cra,stda. Reeve. { ]^{; cLXI V. Ifgs' ti. 15. 



From the Delta. 



Glessula sarrissa, Bs. PI. CLXI. fig. 10. 



gemma, Bs. PI. CLXI. figs. 20, 27, 28, 29. 



var. minuta, G.-A. 



Glessula (Rishetia) lonqispira, n. sp. (Plate CLIX. fig.s. 1, 2, 

 shells; Plate CLXV. tigs. 1-1 c, anatomy.) No. 552 li.il. 



LocaUtif. Pisett Chu, Sikhim {Wm. Robert). 



Shell elongately turreted ; sculpture : tine, regular and rather 

 coarse striation ; colour rudd}' ochraceous ; spire very long, sides 

 straight, apex attenuate: suture shallow; whorls 13, sides flat, 

 proportion of length to last whorl lUO : 'M ; aperture small, oval ; 

 peristome thin ; columellar margin slightl}- convex. 



Size: maj. diam. 9'5; length 44 mm. 



In the Elanford 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 91 mm. ; whorls 13 (No. 552 

 B.M.). 



The generative organs (PI. CLXV. figs, la, Ih). — These are 

 naturally very elongate and twisted ; the hermaplirodite duct is 

 long and closely coiled. The albumen gland elongately oval, uterus 

 and oviduct very long, com))act, cylindrical, the oviduct sliowing 

 broad, close convolutions (follicles). The penis is a simple sheath. 



