UNIO 655 
Umo raeensts Lea, Pr. Ac. N. Sci. Phila., IIT, 1859, p. 171; Jl. 
ee OCe nila lV) (SOO, p., 330. pl. tit, fiss 156; Obs., 
NOUN S1S60, op: 1s ips Lin dies 156. 
Margaron (Umo) racensis Lea, Syn., 1870, p. 52. 
Umio quadratus Lea, Pr. Ac. N. Sci. Phila., III, 1859, p. 172; 
JAC EN Sci, Phila, 1V, 1860,.p2 338: pl: Liv, fic. 163; Obs:, 
Wi S00; px 20; pl. Liv; Tis. 163: 
Margaron (Um) quadratus LEA, Syn., 1870, p. 4. 
Unio squameus Wea, Pr. Ac. IN. Sci. Phila, V, 1861, p. 301; 
itNca Ne sct “PhilaoV. 1862, p. 200, pli. xxvii, fig, 260; 
Obs Xs 1803, ps 22, pl. xevint, fig) 260. 
Margaron (Unio) squameus Lea, Syn., 1870, p. 51. 
Unio lugubris Kuster, Conch. Cab. Unio, 1861, p. 234, pl. 
BEX Tee Oan E. 
Umo weldonensts Lea, Pr. Ac. N. Sci. Phila., VII, 1863, p. 
igi vme, Ni Sct Phila: Vi 1866. p. ti, ply a1. fie. 
"Ops. dul, 1867, p.. 15, pl. mi, he. 8, 
Margaron (Unio) weidonensis Lea, Syn., 1870, p. 51. 
Unio gastonensis LEA, Pr., Ac. N. Sci. Phila., VII, 1863, p. 
igus jl, Aer Nise) Phila; V1; 1866; p. 20, pl. vi, fig. 18; 
Obs= XI 1867, ip. 24, pl. vi, fie 18: 
Margaron (Unio) gastonensis Lea, Syn., 1870, p. 51. 
Umio aberrans Lea, Pr. Ac. N. Sci. Phila., VII, 1863, p. 191; 
Acne toc, vei, Wil 1866, p. 7, pl. 1, fig. .3,-Obs., XI, 
LSO75ps U1 « Pl Ii, figs 3. 
Margaron (Unio) aberrans Lea, Syn., 1870, p. 52. 
Unio mecklenbergensis Lea, Pr. Ac. N. Sci. Phila., VII, 1863, 
De igi: ac. Ne Sci, Pinla. VI 18660) -p. 17, pl: v,. fig. 155 
Olis. X11867, o. 21, pl. -v,, fig: 5: 
Margaron (Unio) mecklenbergensis Lea, Syn., 1870, p. 5I. 
Unio raleighensis Lea, Pr. Ac. N. Sci. Phila., VII, 1863, p. 
fon gh wee Ne Sci. enila Wil), 1866, pe. G6, pl: 1. fie. 2; Obs., 
Role ITSO 74. PALO, Pike tes. (2: 
Marearon (Unio) raleighensis La&a, Syn., 1870, p. 52. 
Unio mediocris Lea, Pr. Ac. N. Sci. Phila., VII, 1863, p. 192; 
Toe IN Sei, Phila.) Vij 1S66,.p. 245, pl: vis, fig. 22; Obs. 
XI, 1867, p. 28, pl. vit, fig. 22. 
Margaron (Unio) mediocris LEA, Syn., 1870, p. 52. 
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