LEILA 1 40 1 



Leila parishii H. and A. Adams, Gen. Rec. Moll., II, 1857, p. 



507- 

 Anodon hiaiis Sowf.ri-.v, Conch. Icon., XV'II, 1867, pi. iv, fig. 8. 



The type is a youn,i( left valve, which has been almost en- 

 tirely denuded of its epidermis. All the shells I have seen 

 jrape widely at the anterior base and at the end of the pos- 

 terior ridi^e. The hinder end is pointed. 



Lrila ksula (d'Orbigny). 



Shell irregularly obovate, somewhat inflated, rather thin, in- 

 equilateral ; beaks full and high ; dorsal line nearly straight or 

 a little sinuous, ending in a sharp pointed wing in front, 

 scarcely winged behind ; dorsal slope obliquely subtruncate, 

 there being but a low angle where its outline joins the hinge; 

 anterior end much narrowed, cut away below ; base almost 

 evenly rounded, a little fuller behind the middle; posterior end 

 widely rounded ; surface yellow-green ; nacre white, iridescent ; 

 pallial line widely sinused behind; anterior scars complex. 



Bolivia ; P.razil ; Paraguay. 

 Iridina esula d'ORBiONv, Guerin Mag., 1835, p. 43; Voy. Am. 



Men, 1843, P- 597- 

 Anodonta csv.Ia Jax, Charpentier and Jan, Cat., 1837, p. 24. 

 Margarita f Anodonta) csiila Lr.\, Syn., 1838, p. 32. 

 Margaron C Anodonta) esida Lea, Syn., 1852, p. 52. 

 Margaron (Cohnnba) esula Lea, Syn., 1870. p. 86. 

 Leila esula Simpsox, Syn., 1900, p. 915. 

 Anodonta arcuata Hani.ey, Biv. Shells, 1843, p. 223. 

 Leila pukinata Hupe, Moll. Nouv., Ill, 1857, p. 90, pi. xx, fig. 



I. 

 Columha pnlvinata Clessin, Conch. Cab. Ano., 1876, p. 255, pi. 



Lxxv, figs. I, 2. 

 Anodon puk'inatus Sowerby, Conch. Icon.. XA^II. 1867, pi. v, 



fig. TO. 



Leila castelnaudi Hupe, Moll. Xouv.. III. 1857, p. 91, pi. xix, 



fig. I. 

 Anodon castelnaudi Sowerby, Conch. Icon., X\"II, 1868, pi. 



XX, fig. 79. 

 Columha castehiaiidii Clessin, Conch. Cab. Ano.. 1876, p. 254, 



pi. lxxxiv, figs. I, 2. 



