NO. 1205. SYNOPSIS OF THE XAIJDES— SIMPSON. 695 



Nat. Sci. Phila., VI, 1866, p. 55, pi. xviii, p. 52; ''Obs., XI, 1869, p. 59. pi. 

 XVIII, iig. 52. — "P.ETKL, Couch. Sam., Ill, 1890, p. 150. — * Westeklund, 

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

 ^ Margaron ( Unio) damascensis Lka, Syn., 1870, p. 52. 



* {\io orontesensis Lea, Pr. Acad. Nat. Sci. Phila., VII, 1863, p. 190; Jl. Acad. Nat. 



Sci. Phila., VI, 1866, p. 53, pi. xviii, fig. 50; * Obs., XI, p. 57, pi. xviii, fig. ,50.— 



' Westerlund, Fauu. Pal., II, Pt. 7, 1890, p. 178.— P.etel, Couch. Sam., Ill, 

 1890, p. 162. 

 ^ Margaron (Unio) orontesensis Lea, Syn., 1870, p. 52. 

 *Unio orphaensis Lea, Pr. Acad. Nat. Sci. Phila., VIII, 1861, p. 285; Jl. Acad. 



Nat. Sci. Phila , VI, 1868, p. 250, pi. xxix, fig. 61; ^Obs., XII, 1869, p. 10, 



pi. XXIX, fig. 61.— *Westeulund, Faiiu. Pal., II, Pt. 7, 1890, p. 179.— *P/etel, 



Couch. Sam., Ill, 1890, p. 162. 

 *Margaron ( Unio) orphaensis Lea, Syn., 1870, p. 52. 

 "* rnio ma7-dine7isis huA, 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.— * Westerlund, Fauu. Pal., IL, Pt, 7, 1890, p, 179. 



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



tUNIO DURIEUI var. KULLETHENSIS Lea. 



" Unio kullethensis Lea, Pr. Acad. Nat. Sci. Phila., VIII, 1864, p. 285; * Jl. Acad. 

 Nat. Sci. Phila., VI, 1868, p. 251, pi, xxix, fig. 65; *0b8., XII, 1869, p. 11, 

 pi. XXIX, fig. 65,— * Westerlund, Faun. Pal., II, Pt. 7, 1890, p, 178. 



'^Margaron {Unio) kuUet]iensisL,EA, Syn., 1870, p. 53. 



" Unio kallethensis and kullinthensis P.etel, Couch. Sam., Ill, 1890, p. 156. 



Algiers; Tunis; Asia Miiior, Assyria; Souttieasterii Europe. 



fUNIO SYRIACUS Lea.i 



*Z7mo 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, tig. 

 53.— * Westerlund, Fauu. Pal., II, Pt. 7, 1890, p. 178.— * P.etel, Conch. 

 Sam., Ill, 1890, p. 169. 



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



O routes River, Syria. 



UNIO BYTHINICUS Kobelt. 

 "Unio bythiniciis Kobelt, Icon, new ser., VI, 1893, p. 96, pi. clxxix, fig. 1128. 

 Asia Minor. 



UNIO MICELII Kobelt. 



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

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



Tunis. 



tUNIO EMARGINATUS Lea.2 



* 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 diifer 

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



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

 possibly be an elongated batavus, the other ajjpears distinct. 



