DOUBTFUL VIVIPARIDiE. 61 



Paludina soiida, Say, is mentioned by name only by Cristofori & Jan, 



Conch. Terr, et Fluv. p. 7 (1832). 

 Paludina canuliculata, GouLD, is mentioned by name only in the Pre- 

 liminary Report on Mass. Shells, p. lu7, and by Wheatley, Cat. 29. 

 Paludina unicolor, Lam., from Sonth Carolina, mentioned by name only 

 by Wheatley in his Cat. of U. S. Shells, p. 30. I have never known 

 of any such species having been found there. 

 Vivipara benyalensis, Lam. {Pal. elonguta, Swainson. — Pal. multilineata, 

 Say, N. H. D. II, 245, 1829, Bun-ney's ed., p. 146. —Pa/, vitula, 

 Rafinesqoe, (Bengal.) Atl. Journ., V. 1()9), said to have been 

 found in St. John's River, Fla. Mr. Say's words are as follows : 

 "Capt. Leconte presented me with a shell which, he informed me, 

 he found in the River St. John, Florida. I described it nearly four 

 years since under the name of multilineata; but, recently, being 

 about to publish it, on a more attentive examination and comparison 

 with a specimen of the elongata from Calcutta, given to me by Mr. 

 Hyde of Philadelphia, I have concluded that it varies from that 

 specimen only in having the umbilicus a little smaller." 

 See also Ampullaria rotundata, p. 6. 



I have seen some specimens said to have come from Florida which 

 might be referred to this species, but at present 

 cannot consider its existence there sufficiently esta- Fig- 125. 

 blished to admit it in the list of American Vivipara. 

 Haldeman (Mon., p. 24, pi. vii,f. 3, 4), thus describes 

 and figures it, considering it probable that it was 

 accidentally introduced into Florida together with 

 Ampullaria rotundata, Say. They are both Calcutta 

 shells : — 



" Shell lengthened, conic, and polished ; com- 

 posed of six or seven convex whirls, the surface of 

 which is covered with minute transverse wrinkles, 

 and numerous narrow spiral bands ; apex pointed ; suture deep ; 

 lines of accretion very fine ; aperture regularly rounded, produced 

 posteriorly. Color bright green, often passing into brownish ; the 

 spiral bands are fuscous, and the inside white." See also Halde- 

 MAX, Mon. 24, pi. vii, f. 3, 4 (1841). 

 Paludina minuta, Say, of KiJSTER, Chemn. ed. ii, p. 52, pi. x, f. 15-16, is 

 Cingula minuta, Totten. Mr. Say never described any such species. 

 I have not given Klister's description as he quotes Totten's descrip- 

 tion, leaving no doubt of its identity. 

 Paludina hyalina, Lea, Tr. Am. Phil. Soc. VI, 17, pi. xxiii, f. 81 (1839), 

 (not of Mokelet), is a distorted Planorhis exacutus, q. v. (Land and 

 Fr.-Wat. Sh. II.) 

 Paludina turrita, Menke, Syn. Meth. p. 40, is mentioned by name only, 

 Cyclostoma marginatum, Say, being mentioned doubtfully as a syno- 

 nym. 



