NO. 1205. SYNOPSIS OF THE NAIADES SIMPSON. 651 



Genus LEGUMINAIA Conrad, 1865. 

 (Type, Monocondylcea mardinensis Lea.) 



Leguminaia CONRAD, Am. Jl. Conch., 1, 1865, p. 233. 

 Microcondyla'a VKST, Verb. Mitth. Sieben. Ver. Nat., 1866, p. 201. 

 Microcondylus DROUET, Jl. de Concb., 1879, p. 138. 



Shell rhomboid-elliptical, slightly biangulate behind; posterior ridge 

 faint and double; beaks anterior, sculptured with fine, concentric 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 branehi;e adherent to the mantle throughout 

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



Section IEGUMIJIAIA Conrad, 1865. 



(Type, Monocondyhm 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 Leguminaia mardinensis. 

 Characters as in the subgenus. 



t LEGUMINAIA MARDINENSIS Lea. 



* Moiiocoiidyloa mardinensis LEA, Pr. Ac. N. Sci., Pbila., VIII, 1864, p. 286 ; * Jl. Ac. 



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

 fig. 67. 



* Leguminaia, mardinensis CONRAD, Am. Jl. Conch., 1, 1865, p. 233. * LOCARD, Arch. 



Mus. Lyon., Ill, 1883, p. 250. * WESTEKLrND,Faun. Pal., II, Pt.7,1890,p.l88. 

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



*Margaron (Monocondylced) mardinensis LEA, Syn., 1870, p. 73. 



* Margaritana mardinensis CLESSIN, Concb. Cab. Ano., 1876, p. 266, pi. LXXXIII, figs. 

 1, 2.* P.ETEL, Concb. Sam., Ill, 1890, p. 173. 



LEGUMINAIA MARDINENSIS var. CHANTREI Locard. 



* Leguminaia chantrei LOCARD, Arch. Mns. Lyon, III, 1883, p. 252, pi. xixbis, figs. 



8-10.* KOBELT, Icon, 1st sup., 1895, p. 23, pi. iv, fig. 3." WESTERLUND, 

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

 * Monocondylaa chantreyi P^TEL, Conch. Sam., Ill, 1890, p. 174. 



* Leguminaia lourgniynati LOCARD, Arch. Mus. Lyou, 111,1883, p. 252, pi. xixbis, 



figs. 11-18. WESTERLUND, Faun. Pal., II, Pt. 7, 1890, p. 189. 



Southern Turkey in Asia. 



