﻿CABII.l.O'TIA 443 



Pseudodon euphratka Conr.\d, Am. Jl. Conch., I, 1865, p. 233. 



Margaritana euphratka von Martens, Vorderas Conch., 1874, 



p. ?._KoBKLT, Icon., new ed., II, 1886, p. 26, pi. XLV. fig. 



266. 

 Ugwninaia euphratka Wusterlund, Faun. Pal., II, Ft. 7. 



1890, p. 188. 

 Gahillotia euphratka Simpson,, Syn., 1900, p. 650. 

 Pseudodontopsis euphratka Kobelt, Icon., new ed.. XIX, 1912, 



p. 2, pi. DXi, fig. 2687. 

 Unio churchillianus Sowerby, Conch. Icon., XVI, 1868, pi. 



xcvi, fig. 526. 

 Pseudodontopsis babylonka Kobelt, Icon., new ed., XIX, 



1912, p. 4, pi. DXii, figs. 2688, 2689. 

 Pseudodontopsis piestius Kobelt, Icon., new ed., XIX, 1912, 



p. 5, pi. DXiiT, figs. 2690, 2691. 

 Yar. churchilliana (Bourguignat). 



More decidedly rhomboid than the type, the anterior end 

 and central base being almost angularly produced. 



Length 90, height 74, diam. 22 mm. 



Asiatic Turkey. 

 Unio churchillianus Bourguignat, Rev. et Mag., 1857, p. 18, 



pi. n. figs. 1-4. 

 Pseudodon churchillianus Westeri.und, Faun. Pal., II, Pt. 7. 



1890, p. 183. 

 Gahillotia euphratka var. churchillianus Simpson, Syn., 1900, 



p. 650. 

 Pseudodontopsis churchilliana Kobelt, Icon., new ed., XIX, 



1912, p. I, pi. DXi, fig. 2686. 

 Monocondxla-a rhoniboidea Lea, Pr. Ac. N. Sci., Phila.. III. 



1859, p.' 187; Jl. Ac. N. Sci., Phila., IV. i860, p. 263. pl. 



xui,'fig. 143; Obs., VII. i860, p. 81, pl. xLii, fig. 143- 

 Margaron (Monocondylcca) rhomboidea Lea, Syn., 1870, p. 



72. 

 MkrocondyUra rhomboidea P.?5tel, Conch. Sam.. III. 1890, 



P- T75- 



