﻿ANODONTA 37 I 



Anodonta lucasi DivSHAYES, Hist. Nat. Moll. Alg., 1847, P^- 

 evil I, figs. I, 2. — BouRGuiGNAT, Mai. Alg., 1864, II, P- 296, 

 pis. xxiii, XXIV, fig. I. — SowERBY, Cotich. Icon., XVII, 1867, 

 pi. XVII, fig. 64. — Simpson, Syn., 1900, p. 627. 



Margaron (Anodonta) lucasii Le.\, Syn.. 1870, p. 78. 



Anodonta cnihia Bourguignat, Mai. Alg., 1864, II, p. 297, pi. 



XXV. 



Close to A. cygnea and probably only a form of it. Deshayes 

 figured it beautifully in the Historie Naturelle d'Algerie, but 

 did not describe it. Sowerby's figure in the Conchologia may 

 represent a young shell. The species, if species it is, seems to 

 differ a little from A. cygnca in texture, in the warm color of 

 the epidermis, and brightness of the nacre. 



Anodonta cii.icia Kobelt. 



Shell evenly long elliptical, inequilateral, somewhat inflated, 

 with lovv', concentrically, obsoletely plicated beaks ; posterior 

 ridge low, feebly and widely biangulate ; surface strongly sul- 

 cate, especially at the rest periods, which are plainly indicated ; 

 epidermis ashy-brown, slightly rayed near the beaks; nacre 

 bluish-white ; anterior muscle scars distinct ; posterior scars 

 inconspicuous. 



Length 90. height 50, diam. 31 mm. 



Cilicia, north of Tarsus. 

 Anodonta cilicia Korelt, Icon., ist Supp.. 1895, P- 24, pi. viia, 



fig. I. — Simpson, Syn., 1900, p. 627. 



I have never seen this shell, which in all probability is noth- 

 ing more than a mere variety of A. cygnea. If the description 

 of it is accurate it is rather strongly concentrically sculptured 

 and the figure shows the rest periods quite plainly. The color 

 seems to be a uniform ashy-brown. 



Anodonta numidica Bourguignat. 



"Shell ventricose, slightly oblong, biangulate behind, very 

 thin and fragile ; epidermis membranaceous, with regular con- 

 centric strins. grayish-yellow, elegantly radiated with green, 

 especially on the posterior region ; nacre bluish-white ; anterior 



