582 Records of the Indian Museum. [Vol. VIII, 



Sanka. Hemiplecta theodori, Phil, from Mergui, by dissection, 

 also belongs to this same genus, and very probably Hemiplecta 

 texiriim, Bs. also. p. 292. 1 considtr auriettae , Tapp. Canefri.,p. 293, 

 should be included. The following :-~c/iaos, W. Blf . ; causia, Bs.; 

 salweenensis, G.A. ; noxia, W. Blf.; nehulosa, W. Blf.; notha, 

 W. Blf., and hypoleuca, W. Blf., with a number of smaller species, 

 all require examination. From the Shan States I have a number 

 of undescribed species in this sub-family collected long ago by my 

 active assistant in the Survey Department, Colonel R. Wood- 

 thorpe, R.E. This collection I have delayed taking in hand in 

 the hope of getting material preserved in spirit from Burma ; 

 now that the Abor Mollusca are nearly all worked out these 

 become of greater interest, and will be taken in hand. 



Macrochlamys hardwickei^ G.-A. var. politulus, G.-A. 



(Plate li, figs. 9, 9a; pi. liii, figs. 6-7.) 



Locality. — Kobo, on north bank of Brahmaputra, Eastern 

 Assam, No 5914 (5. W . Kemp). Two specimens also from Rotung, 

 Abor Hills, No. 5967 (5. W. Kemp). 



Shell flatly globose, closely umbilicated, smooth ; sculpture 

 extremely fine close regular longitudinal striation, the specimens 

 from Rotung with regular rather strong longitudinal striation ; 

 colour very pale ochraceous ; spire depressedly conoid, apex 

 rounded ; suture moderately impressed ; whorls 5, well rounded 

 on the periphery; aperture broadly lunate, nearly vertical; 

 peristome thin ; columellar margin sub-oblique and very slightly 

 reflected near the umbilicus. 



Size: major diameter 16-25, minor 140, alt. axis 6-o mm. 

 The larger specimen from Rotung: major diam. i8'0, minor i6"0, 

 alt. axis 90 mm. 



There were only two specimens in the collection preserved in 

 spirit, one I dissected, the other I took out. It is interesting to 

 see the animal of this variety of M. hardwickei and to be able to 

 compare it with the Calcutta typical form. I have shells in my 

 collection (now in the Natural History Museum) from a near 

 locality to Kobo, namely Brahmakund, and other places in Eastern 

 Assam (see Land and Freshwater Mollusca of India, Vol. I, p. 107), 

 but I never found the animal alive. 



The visceral sac is white with a pale grey tinge, a bar of 

 black follows the mantle edge, not continuous, sparsely spotted 

 along the side of the rectum up to near the heart, this becoming 

 closer continuous towards the apex ; the first apical whorls are 

 pale ochre ; the black markings show through the shell. Foot 

 divided, the peripodial margin broad, closely segmented, raucous 

 gland with a hooked projection over it. The animal is very 

 similar to M. indica, G.-A. [Faun. Brit. Ind., Moll., p. 95). 



The right shell lobe is short, its length equal to the breadth 

 of the right dorsal lobe ; the left shell lobe is very small, short 



