'AM LAND AND FRESHWATER 



Size : maj. diam. 3-75 : alt. axis 3'0 mm. 



The specimens from this part of Assam differ slightly from the 

 type, but hardly to an extent to make them distinct species. 



AlTC-EUS (CrCLORTx) GRANUM, G.-A. 



p. Z.S. J 893. p. 593. 



Moll. Ind., Vol. II. pt. vii. Oct. 1897, pi. Ixiii. fig. G. 



4 a. Ahor Hills and Tsanspu Valley. 



AlyccBus aborensis, n. sp. PI. CXLIX. fig. 9. 



chavjickensis, n. sp. PI. CLVII. figs. 5, 5 a. 

 ( CycloTijx) sp. near costatus. 



duocvlmen, n. sp. PI, CLVII. figs. 2, 2 a. 



{Dioryx) globnlosus, n. sp. PI. CLVII. figs. 1, 1 a. 



liiyorensis, n. sp. PL CLVII. figs. 6, 6 a. 



magnificus, n. sp. PI. CLVI. figs. 1. 1 a, 1 l>. 



oakesi, n. sp. PI. CLVII. figs. 4, 4 a. 



panggiana, u. sp. PL CLVI. figs. .3, 3 a, 



dhbumensis, n. sp. PL CLVI. figs. 4, 4 a. 



{Dioryx) urceolus, n. sp. PL OLIII. figs. 9, 9 a. 



vesica, n. sp. PL CXLIX. fig. 10. 



yamneyeims, n. sp. PL CLVI. fig. 2. 



ALTCiEUs ABORENSIS, n. sp. (Plate CXLIX. fig. 9.) No. 3102 

 P.M. Coll. 



Locality. Bapu Peak, Abor Hills {Lt. G. F. T. Oules, B.E.). 



yiiell umbilicated, very globosely conoid, the sutural tube very 

 long, so that the end is visible when the shell is viewed from the 

 front ; sculpture: fine costulation on the three apical whorls, with 

 regular very tine longitudinal striation and succeeded by fine 

 transverse striation and very fine close costulation next the 

 suture; colour bleached; spire rather high, apex small; sutui'e 

 impressed ; whorls 4, well rounded, the last mucli swollen, becoming 

 much smaller near the constriction and swelling slightly again 

 towards the aperture ; aperture oval, obliquely angulate on upper 

 margin, vertical on inner side, curving ; peristome double, the 

 inner sinuately and moderately crenulate on outer lower margin. 



Size : maj. diam. 7*75 ; alt. axis 4 mm. 



In the extremely fine costulation of the swollen part of the 

 M'horl next the suture, this species approaches A. omissus of the 

 Shan States. 



Altcjeus chanjukensis, n. sp. (Plate CLVII. figs. 5, 5 a.) 



Locality. Chanjuk La, Tsanspu Valley, 4300 ft., Lat. 29'= 25', 

 Long. 95° 20', No. 3583 P.M. {Lt. G. F. T. Oalces, B.E.). 



Shell globosely conoid, closely umbilicated ; seulpture : fine 



