242 LAND AIJD FRESllAVATER 



" Hah. Eajraahal Hills ; Orissa ; Cuttack {Theohald, W. T. B.) ; 

 Ganjam. 



" This species may be distinguished from its allies by its broader 

 last whorl and larger and broader mouth." 



Specimen from Eajmahal. Prom Dr. Aunaudale (Calcutta 

 Museum collector). 



Animal. Pale coloured, with slight coloration near the extremity 

 of the foot which has a hooked overhanging terininatioii. The 

 right shell-lobe is tongue-shaped, moderately long and attenuate, the 

 left is very small ; the left dorsal lobe is in two parts, overlapping. 

 The generative organs were in the stage of rest, although the 

 animals were taken in July, at the height of the rains, and I had 

 to cut up four specimens before 1 could get them out in a satis- 

 factory state. There is a coiled caecum to the penis and a well 

 developed amatorial organ. The teeth of the radula are of usual 

 form, the laterals evenly bicuspid ; the formula : — 



48 . 2 . 10 . 1 . 10 . 2 . 48 

 or 60 . 1 . 60. 



The species is a true Macrochlamys in every character, and 

 approaches M. glauca closer than any other form I am acquainted 

 with. Jaw well arched with central projection. 



Macrochlamys subjecta, Bs. (Plate CXVIII. figs. 1-1 h, x 2-4.) 



Locality. Eajmahal Hills, Head of Ganges Delta (Eaban). 



Shell subobtectly perforate, subglobose, very thin, dull glassy; 

 sculpture none ; colour pale ochraceous, or yellowish tawny; spire 

 subpyramidal, moderately high, sides iiat, apex rather sharp ; 

 suture well impressed ; whorls 6, very closely wound towards the 

 apex, well rounded on the periphery ; aperture broadly and 

 roundly lunate, height slightly less than the breadth, oblique ; 

 peristome thin ; coluuiellar margiu subvertical, vertical near the 

 perforation and here very slightly reflected. 



Size : maj. diam. 13-75, min. 1 1-25 ; alt. axis 7*7 mm. 



I figure this species from the typical locality to show how 

 widely it differs from shells of the Eastern Frontier, considered to 

 be identical. Geoffrey Nevill in his ' Hand-list ' gives Teria Ghat in 

 the Khasi Hills, the Naga and Dafla Hills as localities ; those from 

 Teria Ghat, and also from the Dufla Hills judging froQi specimens 

 collected by me, are referable to the species M. vesica, described 

 further on, p. 248. 



The type in the British Museum given by E. McAndrew, Esq., 

 who purchased Benson's collection, is exactly hke this form, and 

 although marked on the slab " Himalayas " I feel sure came really 

 from this locality, where Benson collected so many of the first 

 shells he described or got them from Capt. Thos. Hutton. In 

 fact Benson's best description of this species is in the Ann. Mag. 

 Kat, Hist. 1852, vol. ix. p. 406 (amended character), and he obtained 



