﻿372 ANODONTA 



end rounded; posterior end oblonj^, slightly nngulated. Beaks 

 placed anteriorly, not prominent, usually eroded, but, when 

 perfect, with (|uile strong, transverse ridges. Corselet raised 

 aiul compressed. Ligament small. 



Length 75-85, height 46-50, diam. 30-35 mm."' (Bourguig- 

 nat.) 



Type locality, a small lal<e east of la Calle. 

 Anodonta lucasi (part) DiiSiiAYii;s, Hist. Xat. Moll. -\lg., 1847, 



pi. cviu, tig. 3. 

 Anodonta numidica Bourguignat. Mai. Alg., 1864, U, p. 298, 



pi. XXIV, figs. 2-6 — Simpson, Syn., 1900, p. 627. 

 Anodonta letourneauxi Bourguignat, Mai. Alg., 1864, Ii> P- 



299, pi. xx\i, figs. 2-6. 



"The Anodonta numidica ditTers from ./. Inca^'i, with which 

 it has been confounded, by its smaller size, more globosely in- 

 flated and shorter shell, more membraneous epidermis, which 

 is more regularly striate and with stronger rays ; the dorsal 

 margin is straighter, the basal margin convex and not straight ; 

 the more anterior beaks ; the corselet more elevated, more de- 

 \elo];ed, and more compressed : the smaller ligament, etc." 



Anodonta subcikcui^aris Clessin. 



Shell subrhomboid, subinflated, with rather low but widely 

 rounded beaks, their sculpture consisting of a number of 

 curved, nearly parallel bars ; dorsal wing somewhat developed, 

 nearly straight on the upper line, its hinder end rounded ; pos- 

 terior slope obliquely truncate; posterior ridge low, widely, 

 feebly double and ending behind in a wide, ill-defined biangula- 

 tion near the base of the shell, base line nearly straight ; ante- 

 rior end rounded, a little cut away below ; surface covered with 

 strong, low, irregular concentric ridges ; epidermis yellowish- 

 ashy with a few feeble brown rays ; nacre white, somewhat 

 iridescent. 



Length 95, height 64. diam. ;^2 mm. 



Scutari Lake. Kuropean Turkey. 

 .Inodonta subcircularis Clessin. Conch. Cab. Ano.. 1873. p. 



F'/. pi. XX n. figs. 3, 4. — Simpson. Syn.. i()00. p. f>2S. 



