430 TERRESTRIAL AIR-BREATHING MOLLUSKS. 



aperture subparallel to the axis, angularly oval; peristome subthickened, its 

 right end scarcely arched. Length, 19 mill.; diameter, 10 mill.; 

 height, 17 mill.; length of aperture, 16 mill.; breadth below mid- 

 dle, 9 mill. 



Fig. 307.' 



Succinea Salleana, Pfeiffek, Proc. Zool. Soc, Nov., 1849, 133; 

 Mon. Hel. Viv., III. 16; in Chemnitz, ed. 2, 49, PI. V. Figs. 7, 8. 

 — W. G. Binney, Terr. Moll., IV. 42, PI. LXXIX. Fig. 18 ; L. 

 & Fr.-W. Sh., I. 270 (1869). — Tryon, Am. Journ. Conch., II. 

 240 (1866). 



Near New Orleans ; belonging, perhaps, to the Texas Subregion. 

 Animal not observed. 



Doubtful and Spurious Species of Succinea. 



Succinea putris, Lin. (Deshayes, Encycl. Meth., 21; DeKay, 1839, 31; Feeus- 



sac, Tabl. Syst., 9), and 

 Succinea amphibia, Drap. (Forbes, Brit. Ass., 1837, 144 ; Ferussac, Tabl. 



Syst. ; Binney, Terr. Moll., II. 159 ; Mrs. Sheppard, Tr. Lit. Hist. Soc. 



Quebec, 1829, I. 194), have been quoted from America. Having never seen a 



well-authenticated specimen of either, I omit them. 

 Succinea vermeta, Say, New Harm., Diss., II. 230 (1829); Desc. 23 (1840); 



ed. Binney, 38 (S. venusta, \V. G. B., err. typ.). Gould quotes this in the 



synonymy of & avara. See Terr. Moll., II. 64, 73, and above, p. 421. 

 Succinea aperta, Lea, Trans. Amer. Philo. Soc, VI. 101, PI. XXIII. Fig. 101 ; 



Obs., II. 107 (1839), is said by Gould (Terr. Moll., II. 67) to be 



identical with S. rotundata, of Sandwich Islands. * lg- 30 °" 



Succinea pcllucida, Lea (Proc. Acad. Nat. Sci. Phila., 1864, 109 ; 



Journ. of same; Obs., XL 134, PI. XXIV. Fig. 106), appears to 



me to be Limncca columella. A figure of an authentic specimen, 



received from Mr. Lea, is here given. 

 Succinea oblonga and putris, credited to North America by Prest- s pe u ut i da , 



wich, Quart. Journ. Geol. Soc, XXVII. 493. 

 Succinea Haleana, Lea. — Shell obliquely ovate, shining, somewhat transparent, 

 thin, golden color ; spire short ; sutures impressed ; whorls 3, con- 

 vex ; aperture large, broadly oval ; outer lip regularly expanded ; 

 columella incurved. Diameter, .17 mill. ; length, .23 inch. Alexan- 

 dria, Louisiana. (Lea.) 



Succinea Haleana, Lea, Proc. Acad. Nat. Sci. Philad., 1864, 109. — 

 S. Haleana. _ 



Tkyon, Am. Journ. Conch., II. 241 (1866). 

 Succinea Halei, Lea, Journ. Acad. Nat. Sci. Philad. ; Obs., XL 136, PI. 

 XXIV. Fig. 110. 



Mr. Lea's original description is here given. Fig. 309 is drawn from a speci- 

 men received from him. See, also, L. &. Fr.-W. Sh., I. 259, 1869. 

 Succinea Mooresiana, Lea. Shell obliquely oval, minutely striate, opaque, whit- 

 ish, somewhat thin ; spire exserted ; sutures impressed ; whorls 3, a little 

 convex; aperture nearly round; outer lip expanded; columella incurved and 



