MELANIA.— Plate XLII. 



ovate, columella callous, twistedly incurved, effusely 

 channelled at the base. 

 Lea, Trans. Amer. Phil. Soc. vol. iv. pi. 15. f. 29. 

 Hab. Alabama, United States. 



An obtusely angled, pyramidally trochoid shell, rather 

 obscurely banded upon a dark-olive ground. 



Species 306. (Mus. Cuming.) 



Melania rorata. Mel. testa pyramidali-conicd, fusco- 

 ulivaced, spird elevatd, anfractibus decern, ad undecim, 

 declivi-convexis, liris confertiusculis, quarum nonnnllis 

 gemmatis, undique cingulatis; aperturd ovatd, colu- 

 mella callosd, coutortd, effuso-canalicnlatd. 

 The bedewed Melania. Shell pyramidally conical, 

 brownish-olive, spire raised, whorls ten to eleven, 

 slopingly convex, corded throughout with rather 

 close-set ridges, some of which are beaded; aper- 

 ture ovate, columella callous, twisted, effusely chan- 

 nelled. 

 Hab. Alabama, United States. 



Although closely allied to the preceding species, I have 

 no specimens with which to connect it. The form, as well 

 as the sculpture, in Mr. Cuming's specimens, differs mate- 

 rially. 



Species 307. (Pig. a, b, Mus. Cuming.) 



Melania undulata. Mel. testd obeso-pyramidali, tro- 

 choided, crassd, ponderosd, olivaced, anfractibus octo ad 



novem, declivi-convexis, costis duabus rude tuberculatis 

 distantibus cingulatis ; aperturd subabbreviato-ovatd , 

 cohtmelld callosd, incurvd, ad basin effuso-canalicnlatd. 



The waved Melania. Shell stoutly pyramidal, trochoid, 

 thick, ponderous, olive, whorls eight to nine, slo- 

 pingly convex, encircled with two distant, rudely tu- 

 bercled ribs ; aperture rather shortly ovate, columella 

 callous, incurved, effusely channelled at the base. 



Say, New Harm. Diss. vol. ii. p. 261. 



Hab. Ohio, United States. 



This species differs from M. canaliculata only in having 

 the distant revolving ribs strongly tubercled, and in the 

 columella ending in a deeper, effused channel. 



Species 308. (Mus. Cuming.) 



Melania annulifera. Mel. testa subul at o-pyramidali, 

 crassd, fulvo-olivaced, anfractibus declivi-convexis, cos- 

 tis validibus undique regulariter annulatd ; aperturd 

 ovatd, parvd, columella reflexd, ad basin appresse effusd. 



The ringed Melania. Shell subulately pyramidal, 

 thick, fulvous-olive, whorls slopingly convex, regu- 

 larly ringed throughout with strong ribs ; aperture 

 ovate, small, columella reflected, appressly effused at 

 the base. 



Conrad, New Preshwater Shells, p. 51. pi. 4. f. 5. 



Hab. Alabama, United States. 



This is of a more subulate form than the three preceding 

 species, ribbed and grooved with the regularity of a screw. 



