UNIO.— Plate XVI. 



Speoics 7-1. (Mils. Cuiiiiug.) 



Unio AVoonwAKUiANUs. Vn. testa mbtngono-ovatd, pa- 

 rum cuneiformi, aulice mbproditctd, rutumlata, postice 

 angidalo-productd, area posticd exililer Ibieari-sul- 

 catd ; flavido-virescente, intense viridi, radio fim nacu- 

 Md. 



Woodwakd's Unio. Shell soiUL'what triangularly ovate, 

 Imt little wedii-e-sliaped, anteriorly rather produced, 



rounded, j)osteriorly angularly produced, the pos- 

 terior area faintly linearly grooved ; yellowish-green, 

 radiately blotciied with dark -green. 



Lea, Pro. Acad. Nat. Sci. Phil. 1857, p. 170. Obs. vol. 

 vii. p. 17. pi. 23. f. 82. 



Ilab. Georgia, North America. 



Of a delicate greenish-vellow, nuliately blotched with 



dark-green. 



