MOLLUSCA OF IXDTA. 805 



Macrochlamys renitens, Morelet, large var. (Plate CXXXI. 

 fig. 4.) 



Locality. Mauritius (from Monsieur E. Dupout's garden), 

 14.ii.06. 



Shell narrowly umbilicated, depressedly conoid, rather flat on 

 base ; surface shiny ; sculpture strong longitudinal wavy distant 

 striation, showing also on the basal side; colour dull umber- 

 brown; spire depressedly conic, sides flat, apex blunt; suture 

 impressed ; whorls 6, regularly increasing, rounded on the peri- 

 phery ; aperture semilunate, subvertical ; peristome thin; colu- 

 mellar margin oblique, very slightly reflected near the umbilicus. 



Size : maj. diam. 18-0, min. 15-25 ; alt. axis 7 mm. 



EXPLANATION OP PLATE OXVIII. 



Fig. 1, 1 a, 1 h. Macrochlamys suhjecta, Bs.,X 2'4. Eajinahal on Ganges. 



2, 2 a, 26, 2 c. t/mVa, n. sp., X 2-4. Teria Ghat, Kbasi 



Hills. (Type.) 



.3, 3 ft, 3 h, 3 c. vesica, n. sp., X 2-4. Cliatak, Sylhet. 



'6d. , (another specimen). Do. 



4, 4fl, 4/;, 4c. vesica, var. anuinala, X 24. Maosmai, near Cherra 



Poonjee, Xhasi Hills. 



5, 5 a, 5 h, f} c. vesica, X 2-4. Hengdan Peak, Naga 



Hills. 



EXPLANATION OF PLATE CXIX. 



Fig. 1, 1 a, 1 b, 1 c. Mc(crochlamys vesica, var. oglri, n., X 4-2. Brahniakuud, 



Assam. 



2, 2(7, 26, 2 c. Cryptcmsteiiia moyongensis, n. sp., X 4-2. Moyong, 



Khasi. 



3, 3 a, 3h, 3 c. Macrochlamys snfflava, w. sp., X 4-2. North Cacliar. 



4, , type, X 4-2. Lhota Naga Hills. 



fi. , X 4"2. Do., another specimen. 



6, , X 4-2. Burrail Range. 



7, 7 «. • -, X 4-2. Naga Hills. 



8, liihrirata, u. sp., X 4-2. Lhota Naga Hills. 



9, snfflava, n. sp., X 4-2. Eastern Burrail Range. 



10, 10a, 10b, 10c. avdersmiiana, G. Nevill, X 4'2. Bhamo. 



11, 11a, lib. lubricata, n. sp., X 4"2. Burrail Range, Naga. 



12, 12 a, 12 b. qumsita, n. sp., X 4*2. Do. 



EXPLANATION OF PLATE CXX. 



Macrochlamys vesica, n. sp. Ainakhal, Cachar. 



Fig. 1. Head with mantle-zone from left side, showing left shell-lobe, &c.,X 4-5. 



1 a. Genitalia, X 4'5. 



1 b. Ditto of another specimen, X 4"5. 



1 c. Jaw, X 30. 



Macrochlamys vesica, var. oglei. Diyung Valley, Singpho Hills. 



Fig. 2. Genitalia, X 4-5. 



2 a. The kale-sac, with spevinatophore forming in, X 12. 

 2h. Radula, some of the admedian and lateral teeth. 



