5G2 PROCEEDINGS OF THE X.t l'Ht.\AL MTU/-: I'M. 



tLAMPSILIS VESICULARIS Lea. 1 



* I'nio rtxk'M/um LKA, Pr. Ac. N. Sci. Phila., II, 1872, p. 156; *J1. Ac. N. Sci. 

 Phila., VIII, 1874, p. 37, pi. xn, fig. 34; *Obs., XIII, 1874, p. 41, pi. xn, fig. 

 34.* B. II. WKKMIT, Check List, 1888.* SIMPSON, Pr. U. S. Nat. Mus., XV, 

 1892, p. 425, pi. LXVII, fig. 4. 



Florida; Flint River, Georgia? 



tLAMPSILIS VILLOSUS B. H. Wright. 



I'nio rilloxus B. H. WRIGHT, Naut., XII, 1898, p. 32. 

 l.ampaiHs villosus SIMPSON. Pr. Ac. N. Sci. Phila., 1900, p. 77, pi. i, tig. 1. 



Suwauee and Escambia rivers, Florida. 



tLAMPSILIS TROSSULUS Lea.-' 



I'nio Iroasttlus LEA, Desc. 12 sp. Uuiones, 1843; *Tr. Am. Phil. Soc., IX, 1846, 



p. 278, pi. XL, fig. 6 ; *Obs., IV, 1848, p. 36, pi. XL, fig. 6. *B. H. WRIGHT, Pr. Ac. 



X. Sci. Phila., VI, 1853, p. 259. "H. and A. ADAMS, Gen. Rec. Moll., II, 1857, p. 



496. *B. H. WRIGHT, Check List, 1888. *RKTKL, Couch. Sam., Ill, 1890, p. 



170. "SIMPSON, Pr. U. S. Nat. Mus., XV, 1892, p. 427, pi. LXVIII, fig. 3. 

 "Margaron ( Twto) trossulus LKA, Syn., 1852, p. 25; 1870, p. 39. 



Lake Monroe, Florida. 



tLAMPSILIS PELLUCIDUS Lea. 



I'n'iu pellHcidus LKA, Pr. Am. Phil. Sci., IV, 1845, p. 163. ^Tr. Am. Phil. Soc., X, 



1845, p. 70, pi. n, fig. 6; Obs., IV, 1848, p. 44, pi. n, fig. 6. CONRAD, Pr. Ac. N. 



Sci. Phila., VI, 1853, p. 254. H. and A. ADAMS, Gen. Rec. Moll., II, 1857, p. 



492. B. H. WRIGHT, Check List, 1888. P^TKL, Conch. Sam., Ill, 1890, p. 162. 



*Margaron ( Unio) pelliicidus LKA, Syn., 1852, p. 39; 1870, p. 62. 



Flint and Chattahoochee rivers, Georgia. 



tLAMPSILIS MINOR Lea. 



/ >iio minor LEA, Desc. 12 sp. Uniones, 1843; *Tr. Am. Phil. Soc., IX, 1846, p. 276, 



pi. xxxix, fig. 3; * Obs., IV, 1848, p. 34, pi. xxxix, fig. 3. 'CONRAD, Pr. Ac. N. 



Sci. Phila., VI, 1853, p. 252. *H. and A. ADAMS, Gen. Rec. Moll., II, 1857, p. 



494. *B. H. WIUGHT, Check List, 1888. *SiMPSON, Pr. U. S. Nat. Mus., XV, 



1892, p. 425, pi. LX vii, fig. 2. 



*Maryaron ( I'nio) minor LEA, Syn., 1852, p. 31; 1870, p. 49. 

 *Unio xtearnsii B. H. WRIGHT, Check List, 1888. 



Florida and southwestern Georgia. 



tLAMPSILIS PAPYRACEUS Gould. 



f a io papyraceus GOULD, Pr. Bost. Soc. N. Hist., II, 1845, p. 53. *CONRAD, Pr. Ac. 

 N.Sci. Phila,, VI, 1853, p. 254. *H. and A.ADAMS, Gen. Rec. Moll., II, 1857, 



1 Dr. Lea has only two specimens of this shell, both in very bad condition dead 

 and eroded. I have been much inclined to believe that it was a form of /,. amyg- 

 dalum, but recently a specimen in better condition submitted for my inspection by 

 Mr. B. II. Wright would seem to show that the two are distinct. 



-A doubtful species. The type is the only specimen I have ever seen which I can 

 refer with any certainty to this species. It is a small, rather solid shell, and may be 

 an unuKually heavy /,. 



