628 UNIO 
small, and one lateral; beak cavities shallow; muscle scars im- 
pressed; nacre white, straw, yellow, salmon to purple, usually 
bright and iridescent behind. 
I,ength of type 94, height 50, diam. 36 mm. 
Length 72, height 38, diam. 26 mm. 
Length 70, height 33, diam. 21 mm. 
Length 40, height 27, diam. 18 mm. 
Florida. 
Type locality, Lake George and Lake Monroe, Fla. 
Unio buckleyt Lea, Desc. of 12 Uniones, 1843 (no pagina- 
tion); Tr. Amy Phils Soc.; 1X5 1845? p. 276,)pl x xine he: 
2; Obs., IV, 1848, p. 34, pl. xxxrx, fig. 2—KustrEr, Conch. 
Cab. Unio, 1861, p. 177, pl. ivi, fig. 2—Sowersy, Conch. 
Icon., XVI. 1866, pl. xxxiv, fig. 175.—Simpson, Pr. U. S. 
Nat..Mus:, XV; 08092; pi.417; pla Lv, figs. O07 Exe hes: 
Ty. 2 5 ky fie 2 5 Syms TOOO pals: 
Margaron (Unio) buckley Lea, Syn., 1852, p. 30; 1870, p. 48. 
Unio buddianus Lea, Desc. of 12 Uniones, 1843; Tr. Am. 
Phil. (Soc, IX 18457?) pe 277, plo, ties ; ObseiVe res: 
p- 35, pl. xi, fig. 5—Kuster, Conch. Cab. Unio, 1861, p. 
249, pl. LXxxIVv, fig. 1—RereEve, Conch. Icon., X VJ, 1865, pl. 
xx, fig. 88. 
Margaron (Unio) buddianus Lea, Syn., 1852; p. 32; 1870, p. 
se 
Unio dali B. H. Wricut, Pr. Ac. N. Sci. Phila., 1888, p. 119, 
pl Vi, fig: Te 
It is difficult to write a description which will cover the 
almost infinite variety of forms that I believe should be in- 
cluded under the name of buckleyi. Most of the younger shells 
are smooth and shining, and are often beautifully though 
rather faintly rayed. Usually the epidermis becomes rough 
and blackish at maturity or with age, and old specimens are 
often arcuate. Under very favorable circumstances the shells 
retain their brilliancy when fully mature or even when old. 
There is great variation in the degree of solidity of the shell 
