NO. 1205. SYXOPSIS OF THE NA FADES— SIMPSON. 529 



Conch. Icon., XVI, 1867, pi. lviii, fig. 294. — * Hartman and Michenkr, 

 Conch. Ceet., 1874, p. 38, lig. 183.—* Latchford, Tr. Ottawa, Field Nat. Clnb, 

 1882, p. 51.— *B. H. WRKiiiT, Check List, 1888.— *P.etel, Conch. Sam., Ill, 

 1890, p. 147.—* Simpson, Nautilus VIII, 1895, p. 122, 2 figures.' 



*Margarita ( Unio) cariosus Lea, Syn., 1836, p. 23; 1838, p. 18. 



Margaron {Unio) cariosus Lea, Syn., 1852, p. 27; 1870, p. 42. 



* Unio cariosa Lamarck, An. sans Vert., VI, 1819, p. 80. — "^Deshayes, An. sans 



Vert., 2d ed., VI, 1835, p. 545; 3d ed,, II, 1839, p. 671. 



* Mya cariosa Eaton, Zool. Text Book, 1826, p. 218. 



* Lampsilis cariosa Stimpson, Shells of N. Eng., 1851, p. 14. 



* Unio ovatus var. b. Lamarck, An. sans Vert., VI, 1819, p. 75. 



* Unio ovata Valenciennes, Eec. Obs. Zool. Anat., II, 1833, p. 226, pi. l, figs. 1, 



la, Ih, Ic. 



* Unioviridis Ferussac, Guer. Mag., 1835, p. 27. 



* Unio oratus Conrad, Ann. and Mag. Nat. Hist., IV, 1849, p. 301 ; * Pr. Ac. N. Sci. 



Phila., IV, 1849, p. 153; * Jl. Ac. N. Sci. Phlla., 1850, p. 276, pl.xxxvii; fig. 

 6; Pr. Ac. N. Sci. Phila., VI, 1853, p. 254. 



Atlantic drainage from Georgia to the lower St. Lawrence.^ 



tLAMPSILIS ALTILIS Conrad. 



* Unio altilis Conrad, New F. W. Shells, 1834, p. 43, pi. ii, fig. 1, and p. 68.— 



* Ferussac, Guer. Mag., 1835, p. 29. — *Moller, Syn. Nov. Gen., 1836, p. 

 207.— *Hanley, Test. Moll., 1842, p. 190 ; Biv. Shells, 1843, p. 190.—* Catlow 

 and Eeeve, Conch. Nom., 1845, p. 55. — *Chenu, Bib. Conch., Istser., Ill, 1845, 

 p. 21, pi. I, fig. 1.—* Conrad, Pr. Ac. N. Sci. Phila., VI, 1853, p. 244.— *H. 

 and A. Adams, Gen. Eec. Moll., II, 1857, p. 493. — *B. H. Wright, Check List, 

 1888.— *P^TEL, Conch. Sam., Ill, 1890, p. 144. 



Margarita {Unio) altilis Lea, Syn., 1836, p. 24; 1838, p. 19. 

 ""Margaron { Unio) altilis Lea., Syn., 1852, p. 27; 1870, p. 42. 



Alabama River drainage; Little Eed River, Clinton, Arkansas'? 



tLAMPSILIS DOLABRiEFORMIS Lea. 



''Unio dolahrwformis Lea, Tr. Am. Phil. Soc, VI, 1838, p. 103, pi. xxiv, fig. 113; 

 *Obs., II, 1838, p. 103, pi. XXIV, fig. 113.— * Troschel, Arch, fiir Naturg., V, 

 1839, II, p. 237.— * Hanley, Test. Moll., 1842, p. 189; *Biv. Shells., 1843, p. 

 189, pi. XXI, fig. 47. — * Catlow and Eeeve, Conch. Nom., 1845, p. 58. — 



* Conrad, Pr. Ac. N. Sci. Phila., VI, 1853, p. 248.— *Chenu, 111. Concl-.., 1858, 

 pi. XXIII, figs. 6, 6a, 6h. — * H. and A. Adams, Gen. Eec. Moll., II, 1857, p. 494. — 



* KusTER, Conch. Cab., 1861, p. 170, pi. lii, figs. 1, 2.—* B. H.Wright, Check 

 List, 1888.— *P-ETEl, Conch. Sam., Ill, 1890, p. 151. 



^Margarita { Unio) dolabra^fonnis Lea, Syn., 1838, p. 18. 

 *Margaron {Unio) dolabraformis Lea, Syn., 1852, p. 27; 1870, p. 41. 



Savannah, Ogeechee, and Altamaha rivers, Georgia. 



tLAMPSILIS CAPAX Green. 



""Unio capax Green, Cab. Nat. Hist., II, 1832, p. 290.— * Conrad, New F. W. 

 Shells, 1834, p. 68.—* Ferussac, Guer. Mag., 1835, p. 26. — * Conrad, Monog., 

 IX, 1837, p. 75, pi. XLii.— *KuSTER, Conch. Cab. Unio, 1852, pp. 21,65, pi. 

 XV, fig. 3.—* Conrad, Pr. Ac. N. Sci. Phila., VI, 1853, p. 245.— *H. and A. 



' By an error the figures of this species and U. ochraceus were changed. 

 2 The specimens referred to this species that are often reported from the Mississippi 

 drainage are no doubt L. rentricosus. 



Proc. N. M. vol. xxii 34 



