296 ZONITID.?E. 



[" Animal dark brown, reddish at the pedicles. Mantle thick, 

 greyish brown, freckled with white ; body very rour;h ; pedal row 

 very distinct and the elongated tubercles whitish, basal edge pale 

 greyish brown. Tail- gland distinct, surrounded by a swollen 

 edge." {Stoliczka, attached to his drawing of the animal.)] 



[Genus STAFFORDIA. 



StafFordia, Godwin-Austen, Mol. Ind. n, 1907, p. 184. 



Type, 8. dafaensis, Godwin- Austen. 



Range. Datla Hills. 



Animal. Foot pointed, no gland, peripodial margin simple with 

 a narrow pale margin; right and left shell-lobes present, both 

 small. Generative organs : dart-sac small, globose, with a long 

 cord-like attachment to the coronal gland ; penis simple ; sperma- 

 theca long. Eadula with aculeate laterals. 



The Dafla Hills, in which this very aberrant mollusk was 

 found, lie on and north of lat. 27° and between long. 93° 10' and 

 93° 50', at the base of the Eastern Himalaya. Nothing like it 

 has been as yet found in any part of India or Burma. 



The shell of this species is an instance of how shell-character 

 may be misleading in classification. So like is it to many species 

 of true Macroclilamys, any conchologist would place it in that 

 genus. 



In a paper on the Helicidse (Zonitidae) collected during the 

 expedition into the Dafla Hills, Assam (Jouru. Asiat. Soc. 

 Bengal, vol. xlv, pt. 2, 1876), occurs the first notice of the type 

 species.] 



[466. Staffordia daflaensis, Godunn-Austen. 



Helix lubrica, Bs. ? ; Godiv in- Austen, J. A. S. B. xlr, 2, 1876, 

 p. 311, pi. 8, fig. 9 ; id. (Macrochlamys) MoL Ind. i, 1883, pi. 21, 

 fig. 6 (sculptm-e) ; id. t. c. ii, 1907, p. 185, pi. 113, figs. 1-1 i. 



Macrochlamys shengorensis, Godivin-Austen, Mol. Ind. \, 1883, 

 p. 102, pi. 22, fig. 5 (young shell). 



Original description : — Shell depressedly tumidly conoid, umbi- 

 licated, solid, rather flat on base. Sculpture very regular, longi- 

 tudinal, sharply defined, broad-ridged ribbing. Colour rich 

 olivaceous with ochre tint. Spire low, sides convex. Suture 

 shallow, adpressed. Whorls 6, rapidly increasing, the last rounded; 

 aperture broadly ovate, oblique, milky white within ; peristome 

 acute, sinuous above and slightly so below, much reflected at 

 umbilical margin ; columellar margin very oblique and descending. 



Major diam. Minor diam. Alt. axis. Alt. b.-w. 

 Largest size : 23-5 20-0 9--1 7-8 mm. 



Smaller size: 18-8 16-2 8-0 5-8 „ 



Hob. Shengorh Peak, Dafla Hills, 7000 ft. (Godtvin-Austen). 



