ANCULOSA. 381 



ffLeptoxis, Eafinesque, Jour, de Phys., Ixxxviii, p. 424, 1819. Hal- 

 DEMAN, Monog. Lept. H. & A. Adams, Genera, i, p. 307, Feb., 

 1854. Chenu, Man. de Conchy 1., i, p. 294, 1859. Binney, Check 

 List, p. 10, June, 1860. Bkot, List, p. 23, 18G2. 



Mudalia, Haldemax, Suppl. to Monog. Limn., Oct., 1840. 



NitocHs, H. & A. Adams, Genei'a, i, p. 308, Feb., 1854. 



1. Tuberculate species. 



1. A. plieata, Conrad, 



Anculotus plicattis, Conrad. New Fresh- Water Shells, p. Gl, t. 8, f. 18, I83i. DeKat, 



Moll. N. Y., p. 103. Jav, Cat., 4th edit., p. 276. Reeve, Monog., t. 3, f. 22. 



MiJLLER, Synopsis, p. 40, 1836. 

 Anculosa iMcata, Conrad, \Vheatlet, Cat. Shells U. S., p. 28. 

 Leptoxis plieata, Conrad, Binney, Check List, No. 379. IlALDEiLAX, Monog. Lept., 



p. 3, t. 2, f. 35—39. Adams, Genera, i, p. 307. 

 Anculosa bella, Lea, Philos. Proc, ii, p. 83, Oct., 1841. Wheatley, Cat. Shells 



U.S., p. 28. 

 Anculosa tuberculata. Lea, Pliilos. Proc, ii, p. 83, Ost., 1811. Phil. Trans., ix, p. 21. 



Obs., iv, p. 21. AVheatley, Cat. Shells U. S., p. 28. Bixney, Check List, No. 392. 

 Anculotus smaragdinus, Reeve, Monog., t. 3, f. 23, April, ISGO. 



Description. — Shell suboval, with a short spire, only one whorl 

 of which is entire, rounded; body-whorl slightly ventricose, with 

 oblique plaits or lines, which are crcnu- j.j^ ^^- j,. -jg ^^^ „j_ 

 lated on the margins of a slight, spiral 

 groove near the suture ; lines of growth 

 prominent ; epidermis greenish or black- 

 ish, with spiral bauds ; aperture elliptical. 



Habitat. — Inhabits tributaries of the 

 Tennessee River in Alabama, adhering to stones. — Conrad. 



Here follow descriptions of the synonymes : — 



Anculosa bella. — Shell subglobose, rather thin, tuberculate above, 

 banded, greenish-brown; spire short; sutures linear; whorls three, 

 convex; aperture subrotund, bluish within; columella maculated. 



Habitat. — Warrior River, Alabama; Professor Brumby. — Lea. 



Figure 715 is a copy of one in Prof. Haldemau's Mono- 

 graph, which, as he says, is labelled "&e//a" in Mr. Lea's 

 cabinet. It is a good figure of the original type. 



Ancidosa tuberculata. — Shell ovate, thick, above tuberculate, brown ; 

 spire short; sutures scarcely impressed ; whorls slightly convex: ap- 

 erture ovate, within flosh-colorcd ; columella thick and spotted. 



