P A T. U D I N A . 



Plate YII. 



Species 38. (Pig. a, 6, c, Mus. Cuming.) 



r.\LUDiN.\ P0LYZON.YT.\. Pal. testd mbpyramidaU-coiucn , 

 flaeesceiite-olivacerl, nigricaide-fiisco lineari-fasciatn, 

 a)ifractibus decUvi-convexis, ad bnsin anyulatis, carinis 

 subdistaniiiiis undique funictdatis ; apertitrd ovaid, 

 margine cohimdlari suhcalloso, canwo titicfo. 



The maky-zoked Paludina. Shell somewhat pyrami- 

 (Inlly conical, yellowish-olive, linearly banded with dark 

 brown, whorls slopingly convex, angled at the base, 

 corded throughout with rather distant keels ; aper- 

 ture ovate, coinniellar margin rather callous, flesh- 

 tinted. 



Vivipara polyzonata, Frauenfeld, Ueb. die Oatt. p. 4. 



Hnh. Philippine Islands. 



Of the same peculiar type as P. o.njtropis of Bengal, 



but of more solid growth and smaller. The cords in each 



species are conspiciiously raised. 



Species 39. (Fig. a, b, Mus. Cuming.) 



Paludina Ingallsianus. Pal. testa oblique pyramidaU- 

 co)iicd, ciiiereo-viridi, oUvaceo strif/aid ef varieyatd, 

 spird vlatd, actttd, anfractibiis dec/ivi-couvexis, oblique 

 plicato-corrtigatis et crispato-siriatis, spiraliter mimde 

 pjiiiictiiratis, anfractn nltimo ivfra peripheriam uni- 

 corinato ; aperlurd pyrifonni-ovatd , fance callosd, 

 alba. 



Ingalls' Paludina. Shell obliquely pyramidally coni- 

 cal, ash-green, streaked and variegated with olive, 

 spire elevated, shai-p, whorls slopingly convex, ob- 

 liquely plicately wrinkled and crisply striated, spi- 

 rally minutely punctured, last whorl encircled with a 

 keel below the periphery ; aperture pyriformly ovate, 

 interior callous, white. 



Lea, Pro. Acad. Nat. Sci. Phil. June, 18.56. 



Hah. Japan. 



This tine and remarkable species, of «hich there are 

 many varieties known, was described by ilr. Lea, from 

 s])ecimens collected in Japan by Mr. Ligalls, an American 

 raissionaiT. 



Species 40. (Fig. a, b, Mus. Cuming.) 



Paludina umbilicata. Pal. teafd subobtecQ umbili- 

 cald, pyramidall-coiiicd, subabbreviatd, solidd, Jtaves- 

 cenle-olivnced, versus apiccM purpureo-cinered, avfrur- 

 tibiis sKperne appresse rotmidatis, deiiide phoio-coiwexis, 

 ad basin cariuatis et ancjnlutis, undique oblique arcu- 

 atim striatis, spiraliter minute puncturatis ; aperlurd 

 subquadralo-ovatd, fance callosd, alba. 



The umbilicated Paludina. Shell w-ith a covered um- 

 bilicus, pyramidally conical, rather shortened, solid, 

 yellowish-olive, purple-asb towards the apex, whorls 

 appressly rounded at the upper part, then flatly con- 

 vex, keeled and angled at the base, everywhere ob- 

 liquely arcuately striated, spirally minutely punc- 

 tured ; aperture somewhat squarely ovate, interior 

 caUous, white. 



Lea, Pro. Acad. Nat. Sci. Phil. June, 1856. 



Hab. Siam ; Mouhot. 



Curiously allied in typical character to the Japanese 

 P. Ingallsiaua, but of a peculiar shortened subquadrate 

 form. 



Species 41. (Fig. a, b, c, Mus. Cuming.) 



Paludina iEUUGiNOSA. Pal. testa subangttste piyrami- 

 dali-conicd, intense cisruleo-viridi, anfractibus declivi- 

 convexis, interdum versus basiti obtuse carinatis, ubique 

 obliqu.e pdicato-striatis, sub lente spiraliter obsolete 

 minutis.umi puncturatis ; aperturd pyriformi-ovatd. 



The bronze Paludina. Shell rather narrowly pyra- 

 midally conical, dark bine-green, wliorls slopingly 

 convex, sometimes obtusely keeled towards the base, 

 evenwhere obliquely plicately striated, beneath the 

 lens spirally obsoletely very minutely punctured ; 

 aperture pyriforudy ovate. 



Hab. China. 



Very closely allied to P. quadruta, from the same loca- 

 lity, the specimens are uniformly lighter, and of a pe- 

 cidiar bronze blue-green colour. 



Februarv, 1863. 



