PALUDIN A. 



Plate IV. 



Species 15. (Mus. Cuming.) 



Pali'IHNa inteetexta. Pal. iestd abbreviato-globosa, 

 Intense viridi, spird paruvi exsertd, anfracl'ihus mb- 

 angudis, tumido-rotundatis, strlis minutis crispato- 

 punctatis imdiiiuii decitssatk. 



The woven Paludina. Shell shortly globose, dark- 

 green, spire but little exserted, whorls rather narrow, 

 tumidly rounded, decussated throughout with minute 

 crisply-punctured striae. 



Say, Amer. Conch, pi. .30. f. 3, 4. 



Hah, New Orleans (in lakes and marshes) ; Say. 



Of a curious, shortly-globose form, very dark green in 

 colour, with the surface minutely superficially sculptured 

 with decussating crisply-punctured strise. P. sinislrorsa, 

 Lea, may be a sinistral state of this species. 



Species 16. (Mus. Cuming.) 



Paludina Bukeoughiana. Pal. testa conico-ovald, Jla- 

 vescente, atifrnclihns rotiiiidatis, siibobsolete spiraUler 

 multiUratis, itndiqne malleatis el decussatim riujom- 

 slrialis. 



Buerol'gh's Paludina. Shell conically ovate, yellowish, 

 whorls rounded, rather obsoletely spirally many- 

 ridged, everywhere malleated and decussately ru- 

 gosely striated. 



Lea, Trans. Amer. Phil. Soc. vol. v. pi. 19. f. 80. 



Hab. ManOla, Island of Luzon, Philippines. 



The only specimen I have been able to procure is cha- 

 racterized by a variety of sculpture, confusedly developed, 

 and more or less obsolete. Mr. Lea figures one of much 

 larger size, and darker olive-green colour, with the spiral 

 ridges more defined. 



Species 17. (Mus. Cuming.) 



Paludina quadeata. Pal. testa pyramidali-conicd, 

 solidinsculd, fiisco-olivaeed, anfractibus decUvibus, 

 plano-convexis, inferne obtuse angulatis et carinatis, 

 longitudinaliter oblique slriatis, liris duabus vel tribus 

 plus minus obsoletis interdum ciuctis. 



The squared Paludina. Shell pyramidally conical, 

 rather solid, brown-olive, whorls sloping, flatly con- 

 vex, obtusely angled and keeled round the lower part, 



longitudinally obliquely striated, sometimes encircled 

 with two or three more or less obsolete ridges. 



Benson, Ann. and Mag. Nat. Hist. 1842. Phil. Abbihl. 

 vol. ii. p. 1.3.5. pi. 2. f. 5. 



Hab. China. 



Well distinguished by its soliil pyramidally-eonical 

 form, obtusely angled at the base. 



Species 18. (Mus. Cuming.) 



Paludina Chinensis. Pal. testd ovato-ventricosd, fusco- 

 olivaced, anfractibus latiusculis, itiflalis, oblique longi- 

 tudinaliter pUcato-striatis, versus apicem malleatis. 



The China Paludina. Shell ovately ventricose, brown- 

 olive, whorls rather broad, inflated, obliquely longi- 

 tudinally plicately striated, malleated towards the 

 apex. 



Gray, Griffith's Cuv. Anim. King. Moll. pi. 1. f. ,5. 



Hab. Chusan. 



The whorls of this species are broader and more ventri- 

 cose than in anv other of the genus. 



Species 19. (Mus. Cuming.) 



Paludina inflata. Pal. testd conico-turbinatd, Jlaves- 

 cente-oliraced, anfractibus subanguslis, rotundatis, ad 

 suturas profundi: impressis, undique rngoso-malleatis 

 et decussatim, plicato-liratis et minutissime striatis ; 

 apertura margine purptireo-nigro. 



The inflated Paludina. Shell conically turbinated, 

 yellowish-olive, whorls rather nari'ow, rounded, 

 deeply impressed at the sutures, roughly malleatetl 

 and decussately plicately ridged, and very minutely 

 striated ; margin of the aperture purple-blaek. 



Villa, Archiv. Skandinav. 1850, p. 330. 



Hab. Sweeden ; Austria. 



The whorls of this species are rather more than usually 

 pressed in at the sutures. 



Species 20. (Mus. Cuming.) 



Paludina viridis. Pal. testd elevato-conied, intense viridi, 

 anfractibus rotundatis, lipvibus, ad suturas subcon- 

 strictis, sub lenle undique minuti; decussatim striatis. 



June, 1862. 



