134 



LAND AND FRESHWATER 



Cryptosoma iNstJsiTATUM, G.-A. (Plate LXX. fig, 8.) Eastern 

 Burmah. 



Capsule of moderate size, rounded at end; spines needle-like, 

 wide apart. 



Macrochlamts lectthis, Bs. (Plate XCIV. figs. 2, 2a.) Cherra 

 Poonjee, and in specimens from Lhota Naga and Khasi Hills. 



Flume very long ; spines thin, long, bifid, on both sides at base, 

 and extending on one side for about halfway. Plate XCIV. fig. 4 

 is a small portion of basal end from another specimen, much 

 magnified. 



Stoliczka was the first naturalist to notice these structures in 

 Indian Mollusca ; he had then been dealing with soaked specimens, 

 and had not formed any correct idea of their physiological and 

 morphological value. He figures and describes two in Journ. Asiat. 

 ISoc, Bengal, vol. xl. pis. xvi. & xvii. pp. 243 ct 250 : — 



Sesara infrendens, Gould. (Plate xvi. fig. 7.) Moulmain. 

 Long spines down the whole length of one side only. 



Mackochlamts honesta, Gould (? andersoniana, Nevill), Journ. 

 Asiat. Soc. Bengal, vol. xlvi. pt. 2, p. 16 (1877). (Plate xvii. 

 fig. 13.) Upper Burmah. 



Spines on both sides at basal half of flume. 



Stoliczka says he examined Dr. Anderson's specimens from Upper 

 Burmah, which he then considered to be the same as the Moulmain 

 shell described by Gould. Xevill afterwards named it as above, 

 and as a variety of honesta. The type came from Ponsee ; the 

 shells from Assam, included by him in his Hand-list, p. 24, are, I 

 consider, distinct. 



The following examples were imperfect : — 



Kaliella kezamabnsts, G.-A. (Plate XL. fig. 11.) Anghami 

 Naga Hills. 



Small bifid spikelets on one side of the flume. 



Macrochlamys jainiana, G.-A. (Plate XXVIII. figs. 2 b-e.) 

 Manbhum. 



Capsule not seen perfect ; spikelets on both sides, long and bifid. 



Macrochlamys? terminus, n. sp., G.-A. (Plate XCIV. figs. 3, 

 3 a.) Brahmakund, Eastern Assam. 



Very close, regular, saw-like teeth down one side ; capsule not 

 seen. Requires verification. 



