﻿OBHOUARIA 331 



Length 52, height 45, diam., without the knobs, 2-] mm., 

 diam. over all 33 mm. 



Mississippi drainage ; Michigan ; Alabama River ; southwest- 

 wardly to central Texas. 



Type locality, Kentucky River and Rapids of Letart. 

 Obliqnaria (Oundnda) reflexa RaF]nesouk, Ann. Gen. Sci., 



Phys., 1820, p. 306. 

 Obliquaria reflexa Bakkk, Moll. Chicago, Pt. I, 1898, p. 8<>, 



pi. XIV, fig. 5; XX, fig. 2. — Simpson, Syn., 1900, p. 611. — 



Ortmann, Ann. Car. Mus., VIII, 1912, p. 310, fig. 16. 

 Unio reflexns Say, Am. Conch., VI, 1834. — Conrad, Monog., 



I, 1835, p. 7, pi. IV, fig. I. — KusTER, Conch. Cab. Unio, 1852, 



p. 52, pi. XI, fig. 2. — Reeve, Conch. Icon., XVI, 1864, pi. 



VI, fig. 2^. 

 Unio comiitus Barnes, Am. Jl. Sci., VI, 1823, p. 122, pi. iv, 



fig. 5, 50, 5/7, 5r. — Hani.ey, Biv. Shells, 1843, p. 179, pi. xx, 



fig- 30- 

 Margarita (Unio) cornutus Lea, Syn., 1836, p. 15: 1838, p. 15. 

 Margaron (Unio) cornutus Lea, Syn., 1852, p. 22; 1870, p. t^t,. 

 Mya corniita Eaton, Zool. Text-book. 1826, p. 216. 

 Thelidcrma cornnta Svvainson, Treat, on Mai., 1840, p. 269. 

 Unio torulosiis SucmT and Eaton, Transylvania Jl., 1831, p. 



75- 

 Var. pliillipsi (Conrad). 



Shell more compressed than the type, more evenly oval, less 

 distinctly pointed behind, often decidedly corrugately wrin- 

 kled ; epidermis with broken rays or rayless ; smaller than the 

 type. 



Length 40, height 35, diam., over all 2;^ mm. 



Type locality, Wabash River. 

 Unio pliillipsii Conrad, Monog., I, 1835. p. 9, pi. v. fig. i. 

 Unio phiUipsii Catlovv and Reeve, Conch. Nom. 1845, P- 62. 



— ^Kuster, Conch. Cab. Unio, 1852, p. 50, pi. x, fig. 3. 

 Margarita (Unio) phillipsii Le.\, Syn., 1836, p. 15 ; 1838. p. 15. 

 Margaron (Unio) phillipsii Lea, Syn., 1852. p. 22; 1870, p. 2>i- 

 Unio phifipsii Haneey, Test. Moll., 1842, p. 178. 

 Obliquaria reflexa, (part), Simpson, Syn., 1900, p. 611. 



