PALUDINA.— Plate VI. 



Species 35. (Miis. Cuming.) 



P.A.HJD1NA PR.EMORSA. Pal. iestd ovaio-conicit, oUvaced, 

 aiifractlius coiivexis, lonijiludinaliler minute decus- 

 aatiiu crispato-siriatls, spiralUer dense mimitissime 

 pimcturatis ; aperturd pyyifornii-circulari, nigro-mar- 

 (j'matd. 



The eroded Paludina. Shell ovately conical, olive, 

 « liorls convex, longitudinally minutely decussately 

 crisply striated, spirally densely very minutely punc- 

 tured ; aperture pyriformly circular, black-edged. 



Benson MS., Philippi (misprinted Remosui), Abbild. und 

 Beseh. Conch, vol. ii. p. 134. pi. 2. f. 3. 



Hub. Bengal. 



I have the autliority of Mr. Benson for stating that the 

 name Reviossii published liy Phili])pi, and adopted by 

 Kiister and Frauenfeld, is a mistaken reading of the name 

 praiiiorso, communicated by Mr. Benson to Dr. Philippi 

 ill manuscript. As there is no such person as Eemosse, 

 tliat name must be cancelled. 



Species 36. (Fig. a, b, Mus. Cuming.) 



FaU'dina CILIATA. Pal. tesld profiuide angmte umbiU- 

 catu, ovalo-coaicd, solidd, olivaceo-viridi, versus apicem 

 parpwascente tinctd, atifraclihus convexis, undique spi- 

 raliter lineari-ciliads, Juxta suluras anguste angiilatis, 

 angulo versus aperturam evanido, cnifraclii nUimo circa 

 umbilicum excavato et nmbdicalo ; aperturd pyriformi- 

 circulari, vivide nigro-niarginatu. 



The eye-lash Paludina. Shell deeply naiTowly um- 

 bilicated, ovately conical, solid, olive-green, purple- 

 tinged towards the apex, whorls convex, spirally 

 linearly eyelashed throughout, naiTowly angled next 

 the sutures, angle disappearing towards the aperture, 

 last whorl excavated and keeled around the umbili- 

 cus ; aperture pyriformly circular, with a shining 

 black edge. 



Hub. Siam ; Mouhot. 



This very remarkable and beautiful species, encii-cled 

 throughout with minute bristly hair-lashes, was collected 

 the year before last by the unfortunate Mouhot. 



Species 37. (Mus. Cuming.) 



Paludina Hamcltoni. Pal. testa angusfe profundi 

 mnbilicatd, attenuatim conico-ovatd, intense olivaced, 

 spird elatd, anfraclibus ivtundatis, juxta suturas ap- 

 pressis, minute decnssatim striatis, ultimo circa umbi- 

 licum subexcavato ; aperturd pyriformi-circulari. 



Hamilton's Paludina. Shell narrowly deeply umbili- 

 cated, attenuately conically ovate, dark olive, spire 

 raised, whorls rounded, appressed next the suture, 

 minutely decussately striated, last whorl a little exca- 

 vated around the umbilicus ; aperture pyriformly cir- 

 cular. 



Metcalfe, Pro. Zool. Soc. 1S51, p. 73. 



Ilab. Borneo. 



A species apparently of an ordinary character, but par- 

 taking of the Siam type in being angularly excavated, 

 though in a slight degree, around the umbilicus. 



