P A L U D I N A . 



Plate II. 



Species 5. (Fig. a, b, Mus. Cuming.) 



P.VLUDINA Bengalensis. Pal. tesld elevato-conicd, tenui, 

 virescenle, nitente, saturate viridi lineatd et angusle 

 fa-iciatd ; anfractibua couvexis, laviiils, minutissiwe 

 decussatim striatis. 



The Bengal Paludina. Shell elevately conical, thin, 

 greenish, shining, lineateil and narrowly banded 

 with dark-green; whcirls convex, smooth, veiy mi- 

 nutely decussately striated. 



Lamarck, Anim. sans vert. vol. vi. part 2. p. 174. 

 Delessert, Rec. Coq. pi. 1. f. 3. 

 Faludina eloiigata, Swainson. 



Hab. North-west Provinces of Hiudostan ; Benson. 



A shilling pale-green shell, banded and lineated through- 

 out with dark-green, sometimes turning to rusty-brown. 

 The surface is very minutely engraved with impressed 

 spiral strise, decussating slightly-raised longitudnial striae, 

 which are strise of growth. 



Species 6. (Mus. Cuming.) 



Paludina costata. Pal. lestd elevato-conlcd, ustulalo- 

 oUvaced, anfractibus siipenie plaiio-declivibiis, delude 

 acuti augidatis, costis lirisrjKe taiuibiis JUiformlbiis 

 mtdique ftmicidatis, niifractic ultimo sitbve/ifricoso, ad 

 basin multistriato. 



The bibbed Paludina. Shell elevately conical, swarthy- 

 olive, whorls flatly sloping rountl the upper part, 

 then sharply angled, corded throughout with fine 

 thread-like ribs and ridges, last whorl rather ventri- 

 eose, mauy-striated at the base. 



QuoY, Moll. Voy. de FAstrol. pi. 80. f. 1 to 3. 



Jlcib. Borneo. 



Of a peculiar swarthy-olive colour, sharply angled at 

 tiie shoulder, corded thi'oughout with fine thread-like ribs 

 and ridges, which are rather paler in colour, yellowish. 

 It comes very near to P. augidaris. 



faaciatd et lineatd, aii/ractibiis superue obtuse tumidi-f, 

 delude rotuudatis, decussatim miiiutissiriie striatis, 

 striis longitudiiialibus iiumerosis, confertis. 



The gigantic Paludina. Shell elevately conical, rather 

 ventricose, pale-green, more or less obscurely banded 

 and lineated with dark-green, whorls obtusely swollen 

 round the upper part, then rounded, decussately very 

 minutely striated, longitudinal stria; numerous, close- 

 set. 



Von dem Busch, MS. in Mus. Cuming. 



Hub. Bengal ; Central Africa. 



It is somewhat doubtful whether this is not a light in- 

 flated form of P. Bengalensis ; yet Mr. Cuming possesses 

 a smaller brighter-coloured shell, from Central Africa, 

 which lias these peculiarities developed in a manner wliirli 

 would lead to the conclusion that it is distinct. 



Species 7. (Mus. Cuming.) 



Paludina GIOANTEA. Pal. testa elevato-conicd, subven- 

 tricosd, virescente, saturate viridi plus minus obscure 



Species 8. (Fig. a, b, Mus. Cuming.) 



Paludina Ussuriensis. Pal. testa subghboso-conicd, 

 Jtavescente, viridi tinctd, riifo plerumqne trifasciatd, 

 anfractibus superne planulatis, delude tumido-conce.cis, 

 splrallter carlnatls, longltudlnaliter irregtdariter pll- 

 catodiratls, interstitlls malleatls et striatis. 



The Ussuri Paludina. Shell somewhat globosely coni- 

 cal, yellowish, tinged with green, generally encircled 

 with three red bands, whorls a little flattened at the 

 upper part, then tumidly convex, spirally keeled, 

 longitudinally irregularly plicatcly riilged, interstices 

 malleated and striated. 



Gerstfeldt, Laud und Siiss. Moll. Sib. und Anmr-Geb. 

 part 1. p. 3. pi. 1. f. 1 to 4. 



Hab. Mouth of the Ussuri, a tributary of the River 

 Amoor, Siberia ; Gerstfeldt. 



A fine and very characteristic Siberian species, in which 

 the whorls are keeled, but the keels are serrated by irregular 

 longitudinal ridges and stri;e, which are scarcely developed 

 until the shell approaches maturity, and seem to indicate 

 a departure from the typical symmetry of the plan of 

 n-rowth. 



•June, 1862. 



