N<>.l-">5. SYNOPSIS OF THE X AT. IDES SIMI'fif>\. 695 



Nat. Sci. Pbila., VI, 1866, p. 55, pi. xvm, p.52; "Obs., XI, 1869, p. 59. pi. 



xviii,. lig. 52. *P/ETEL, Couch. Sain., Ill, 1890, p. 150. * WESTERH'ND, 



Faun. Pal., II, Pt. 7, 1890, p. 178. 

 Manjaron ( Unio) damascensis LKA, Syu., 1870, p. 52. 

 I'nio orontesensis LEA,Pr.Acad. Nat. Sci. Phila., VII, 1863, p. 190; Jl. Acad. Nat. 



Sci. Pbila., VI, 1866, p. 53, pi. xvm, fig. 50 ; * Obs., XI, p. 57, pi. xvm, fig. 50. 



* WESTERLUND, Faun. Pal., II, Pt. 7, 1890, p. 178. P.ETEL, Conch. Sam., Ill, 

 1890, p. 162. 



* Margaron (Unio) orontesensis LEA, Syn., 1870, p. 52. 



* I'nio orphaensis LEA, Pr. Acad. Nat. Sci. Phila., VIII, 1864, p. 285; Jl. Acad. 



Nat. Sci. Phila , VI, 1868, p. 250, pi. xxix, fig. 64; ''Obs., XII, 1869, p. 10, 

 pi. xxix, fig. 64. ^WE.STEULUND, Faun. Pal., II, Pt. 7, 1890, p. 179." P.KTEL, 

 Conch. Sam., Ill, 1890, p. 162. 

 '' Maryaron ( Unio) orpnacnsis LEA, Syn., 1870, p. 52. 



* I'nio mnrdinensis LEA, Pr. Acad. Nat. Sci. Phila., VIII, 1864, p. 286; "Jl. Acad. 



Nat. Sci. Phila., VI, 1868, p. 252, pi. xxx, fig. 66; * Obs., XII, 1869, p. 12, pi. 

 xxx, fig. 66.* WKSTERLUND, Faun. Pal., II., Pt. 7, 1890, p. 179. 



* Margaron ( Unio) mardinensis LEA, Syn., 1870, p. 53. 



tUNIO DURIEUI var. KULLETHENSIS Lea. 



* Unio kitllethensis LEA, Pr. Acad. Nat. Sci. Phila., VIII, 1864, p. 285; * Jl. Acad. 



Nat. Sci. Phila., VI, 1868, p. 251, pi. xxix, fig. 6'>; *Obs., XII, 1869, p. 11, 

 pi. xxix, fig. 65. * WESTERLUND, Faun. Pal., II, Pt. 7, 1890, p. 178. 



* Margaron ( Unio) kulletliensis LEA, Syn., 1870, p. 53. 



* Unio kalletheiisis and kullinthensis P/ETEL, Conch. Sam., Ill, 1890, p. 156. 



Algiers; Tunis; Asia Minor, Assyria; Southeastern Europe. 



fUNIO SYRIACUS Lea. 1 



*t7nio syriacus LEA, Pr. Acad. Nat. Sci. Phila., VII, 1863, p. 189; * Jl. Acad. Nat. 



Sci. Phila., VI, 1866, p. 56, pi. xix, fig. 53 ; * Obs., XI, 1867, p. 60, pi. xix, fig. 



53. * WESTERLUND, Faun. Pal., II, Pt. 7, 1890, p. 178. * P^CTEL, Conch. 



Sam., Ill, 1890, p. 169. 

 * Margaron (Unio) syriacus LEA, Syn., 1870, p. 35. 



Orontes River, Syria. 



UNIO BYTHINICUS Kobelt. 



* Unio bythinicus KOBELT, Icon, new ser., VI, 1893, p. 96, pi. CLXXIX, fig. 1128. 



Asia Minor. 



UNIO MICELII Kobel:. 



*Unio micelii KOBELT, Nach. Mai. Ges., XVI, 1884, p. 182; Icon., new ser., II, 

 1886, p. 24, pi. XLIII, figs. 260, 261. 



Tunis. 



fUNIO EMARGINATUS Lea.* 



*Unio emarginatus LEA, Tr. Am. Phil. Soc., V, 1834, p. 62, pi. ix, fig. 22; *Obs., I, 

 1834, p. 174, pi. ix, fig. 22. 



1 1 have only seen a single, badly eroded specimen, the type, but it seems to differ 

 from anything I know. It probably belongs to this group. 



2 Lea's only shell, the type, consists of two opposite, odd valves. One of these may 

 possibly be an elongated batavus, the other appears distinct. 



