ANODONTITES 1437 



This seems to be. perhaps, more closely related to A. forhcsian- 

 ns than anvthinjT else, but is more rhomboid, more inflated, 

 has much larger and more prominent beaks and ditlerent epi- 

 dernu's. 



Anodontites brtdgf.sii (Lea). 



Shell oblong, subelliptical. scarcely subinflated. somewhat 

 inequilateral, rather thin : beaks moderately full, but little ele- 

 vated ; hinge line almost straight, very slightly arched : anterior 

 end rounded, almost as wide as the posterior end. subangulate 

 above : base incurved medially in adult or old shells : posterior 

 end rounded, a little drawn out on the median line ; surface 

 with irregular growth lines ; epideniiis dull greenish or brown- 

 ish-green, darker on the dorsal slope, occasionally faintly 

 rayed: nacre brilliant silvery and iridescent, bluish, greenish 

 or flesh-colored, sometimes salmon-tinted within the cavities, 

 often faintly radially sculptured. 



Length 132. height 68. diam. 42 mm. 

 Nicaragua ; Honduras. 

 Anodonta bridgesii Le\, Pr. Ac. X. Sci. Phila., XH, i8i>8. p. 

 95 : Jl. Ac. N. Sci. Phila.. VL 1868. p. 291. pi. xlii. fig. 104; 

 Obs.. XIL i86(). p. 31. pi. xLii, fig. 104.— Clessix. Conch. 

 Cab. Ano., 1874, p. 136, pi. lxv. figs, i, 2. 

 Mar gar on (Anodonta) bridgesii Lea, Syn., 1870, p. 81. 

 Glabaris bridgesii Simpsox. Syn.. 1900. p. 926. 



^lore elongated than umbonatiis and almost evenly rounded 

 behind. The beaks are ven' much lower than in that species. 

 By an error the artist has made the type of Lea's species bian- 

 gulate behind. The shell is almost evenly rounded. It is more 

 elongated than A. forbcsianiis, is scarcely narrowed in front, 

 and is not truncate behind as th.at species is. 



AxonoxTiTES jEWETTiAXus (Lea"). 



Shell long rhomboid, inflated, thin to subsolid. slightly in- 

 equilateral : beaks full and elevated : hinge line lightly arched, 

 sometimes a little sinuate : anterior end more or less cut away 

 below, roimded above and angular where it joins the hmge 



