20 PALUDINID^'. 



var. ampulliformis. 

 Paludina ampulliformis, Souleyet, Voy. Bonite, 1852, River at Touranne, 



1 Cochin China (sp. juv.) ; ex c. A. Morelet, Esq. 



5 Basilan, Philippines -, coll. Dr. C. Semper. 



60 Manwyne, Hotha, Mungla, Nantin and Momien, Yunnan ; Mandalay, 

 Burma; coll. Dr. J. Anderson. 



There are several distinct forms mixed up in these Yunnan 

 specimens ! 



suhvar. subampulliformis. 



3 Tamsui (Formosa) ; coll. R. Hungerford, Esq. 



Exactly resemble the above recorded Nantin specimens, 

 both are less convexly inflated than in Sonleyet's type. 



var. compacta. 



8 Assmungkang (Formosa) ; coll. R. Hungerford, Esq. 



Long. 33, diam. 23| mil. A remarkable variety, well cha- 

 racterised by its much less tumid and rounded whorls, which are 

 compressed and of somewhat thicker texture. 



var. lecythis. 



Pitludina lecythis, Benson, J, A, S. B. V, 1836, Sylhei ; Reeve, fig. 12, 

 as " P. ampullacera ". 



3 Sylhet, types of P. lecythis ; ex c. As. Soc. Bengal (44, 88). 

 3 Logtak lake, Manipur ; coll. Colonel H. H. Godwin-Austen. 



var. richthofeni. 



Paludina chinensis, var. richthofeni, G. Nevill, Cat. Fasc. E., jp. 26, 1877, 

 Java : long, 33^, diam. 26 mil, 



3 Java ? (type var.) ; coll. Baron F. von Richthofen. 



var. (?). 

 1 ThyetMyo; coll. R. Hungerford, Esq. 



10. Paludina bengalensis. 



Paludina bengalensis, Lamarck, Sist. VI, 1822, Bengal; from Cochin China, 

 fide Mor., Ser. Conch. IV; Deshayes, Voy. Belanger, ;pl. 1, figs. 14-15 

 {^fide Con. Indica, " a rare and distinct far."]. 



6 Midnapur; ex c. As. Soc. Bengal. 



4 Rajmahal; ex c. Dr. T. Oldham. ;_ 



