26 PALUDINIDA. 
var. tezpurensis. 
P. crassa, vur. tezpurensis, G. Nevill, Cat. Moll, Fase. E., 1877, p. 35, 
Tezpore: long. 73, diam, 15% mil. 
Exceedingly close to—if indeed specifically distinct from— 
a form sent me by Mons. Morelet from Cambodia, as P. haine- 
stana, Lea! 
8 Tezpur, Assam (type var.); coll. Dr. F. Stoliczka. 
4 Pegu; exc. Dr. F. Stoliczka. 
23. Paludina siamensis. 
Vivipara siamensis, von Frauenfeld, Proc. Zool. Soc. 1865 and Ver. Zool.— 
Bot. Gesells. Wien, 1865, Siam: long. 24, diam. 21 mil. 
1 Siam; exc. A. Morelet, Esq., (17, 152). 
1 Siam ; ex Mr. Sowerby (ex c. Lombe Taylor), 
Long. 23, diam. 20 mil., and labelled “ P. hainesiana.” 
var. burmanica, nov. 
A very small variety; spire short, apex obtuse, with the 
whorls even less acute and exserted, the last one larger in pro- 
portion and more globosely swollen, with the keel round the 
umbilicus obsolete; aperture more contracted, that is, less 
dilately expanded; colouration of epidermis and the black 
peristome exactly similar. Long. 11, diam. 10 mil. 
1 Prome, on the Irawady (type var.) ; coll. W. Theobald, Esq. 
1 Tenasserim Prov. ; ex ¢. Colonel Godwin-Austen (coll. Mr. O. Limborg). 
30 Yaylaymaw, Upper Burma, not quite adult; coll. Dr. J. Anderson. 
24. Paludina hainesiana. 
Paludina Hainesiana, Lea, Proc. Ae, Philad. VIII, 1856, Siam : long. 1, 27, 
diam. 0, 88 inch; ? var. = P. rattrei, Cr. and F. [ = frauenfeldi, Desh. 
not Mor.]. 
1 Cambodia; ex c. A. Morelet, Esq. (25%, 20). 
2 Siam; ex c. A, Morelet, Esq. (263, 203). 
var. lamarcki. 
Paludina Lamarckii, Deshayes, Nouv, Archiv. Mus. X, 1874, Cambodia, 
1 Cambodia; ex c. P. Bouvier, Esq. (374, 254). 
