NO. 1205. SYNOPSIS OF THE NAIADES— SIMPSON. 651 



Genus LEGUMINAIA Conrad, 1865. 



(Type, Monocondylwa mardinensis Lea.) 



Leguminala Conkad, Am. Jl. Conch., 1, 1865, p. 233. 

 Microcondylcea Vest, Verh. Mitth. Sieben. Ver. Nat., 1866, p. 201. 

 Mierocondylns Drouet, Jl. de Conch., 1879, p. 138. 



Shell rhomboid- ellipticalj slightly biangulate behind; j)osterior ridge 

 faint and double; beaks anterior, sculptured with fine, conceutric ridges 

 which are sometimes slightly corrugated, but which show a tendency 

 to form two rounded loops; surface smooth or with very faint corruga- 

 tions on the posterior slope; epidermis rayless or nearly so; a single 

 tooth in each valve, that in the left under the beak, that in the right in 

 front of it, teeth smooth; epidermal and ligamentary matter mingled 

 with the nacre along the hinge; the two front anterior muscle scars 

 united, the hinder distinct, posterior scars faint; beak cavities shallow; 

 dorsal scars few, irregularly disposed. 



Animal with the outer branchitie adherent to the mantle throughout 

 their entire length; inner free from the abdominal sac. (Drouet.) 



Section LEGUMINAIA Conrad, 1865. 

 (Type, Monocondyhea mardinensis Lea.) 



Shell somewhat solid, elliptical to rhomboid; beaks rather full; teeth 

 strong, with sometimes a slight .secondary tooth in the left valve, well 

 in front. 



Group of JJeguminaia mardinensis. 

 Characters as in the subgenus. 



t LEGUMINAIA MARDINENSIS Lea. 



^Monocondylaa viardinensis Lea, Pr. Ac. N. Sci., Phila., VIII, 1864, p. 286 ; * JL Ac. 



N. Sci. Phila., VI, 1869, p. 252, pi. xxx, fig. 67; *Obs., XII, 1869, p. 12, pi. xxx, 



fig. 67. 

 " Legmninaia mardinensis Conrad, Am. Jl. Conch., 1, 1865, p. 233. — * Locard, Arch. 



Mas. Lyon., Ill, 1883, p. 250.— * WESTEKLUND,Faun. Pal.,II, Pt.7,18!)0,p.l88.— 



KOBELT, Icon., new ed., VI, 1893, p. 92, pi. CLXXvii, figs. 1122, 1123. 

 ^ Margaron (Monocondylcea) mardinensis Lea, Syn., 1870, p. 73. 

 ^ Margaritana mardinensis Clessin, Conch. Cab. Ano., 1876, p. 266, pi. Lxxxiir, figs. 



1, 2.—* Pjetel, Conch. Sam., Ill, 1890, p. 173. 



LEGUMINAIA MARDINENSIS var. CHANTREI Locard. 



^ Leguminaia chantrei Locard, Arch. Mus. Lyon, III, 1883, p. 252, pi. xixbis, figs. 



8-10. — * Kobelt, Icon, 1st sup., 1895, p. 23, pL iv, fig. 3. — " Westerlund, 



Faun. Pal., II, Pt. 7, 1890, p. 198. 

 * Monocondykea chantreyi P^tel, Conch. Sam., Ill, 1890, p. 174. 

 *Leguminaia hourguignati Locaed, Arch. Mus. Lyon, III, 1883, p. 252, pi. xixbis, 



figs. 11-18.— Westerlund, Fann. Pal., II, Pt. 7, 1890, p. 189. 



Southern Turkey in Asia. 



