b'G BIBLIOGRAPHY OF PUBLICATIONS OP ISAAC LEA, LL 1). 



1854. Lea, Isaac— Coiitiuued. 



Unio pliciferus, Lea. Dated by Mr. Conrad, 



1838 



Published in Memoir read be- 

 fore and deposited with the Amer. 

 Phil. Soc, July 15th, 1836, .ind 

 printed in Trans., vol. vi. Issued 

 in Synopsis, 1836. 



Margaritana arcnla, Lea. Dated by Mr. Conrad, 1838 



Published in Memoir read be- 

 fore and deposited with the Amer. 

 { Phil. Soc., Aug. 19th, 1836, and 

 printed in Trans., vol. vi. Issued 

 in Synopsis, 1836. 



TJnio discus, Lea. Dated by Mr. Conrad, 1838 



' Dorfeuillianus, Lea. Dated by Mr. Conrad, 1838 

 " Menkeanus, Lea. " " 1838 



Published in Memoir read be- 

 fore and deposited with the Amer. 

 Phil. Soc, Nov. 4th, 1836, and 

 printed in Trans., vol. vi. Issued 

 in Synopsis, 1836. 



TJnio Eangianus, Lea. Dated by Mr. Conrad, 



Published in Memoir read be- 

 fore and deposited with the Amer. 

 Phil. Soc, July 21st, 1837, and 

 printed in Trans., vol. vi. Issued 

 in Synopsis, 1836. 



Published in Memoir read be- 

 fore and deposited with the Am. 

 Phil. Soc, Oct. 2d, 1840. Oct. 16th 

 ordered to be printed. Issued in 

 the Proceedings of that month, 

 (No. 13, p. 2Sri), which was laid on 

 the table by the Reporter, Nov. 

 6th, 1840. Printed in the Trans., 

 vol. viii, p. 191. 



Published in Memoir read be- 

 fore and deposited with the Am. 

 Pliil. Soc , June 18th, 1841. I.ssued 

 in Proceedings, Xo. 19, for Octo- 

 ber, 1841. These dates of Mr. Con- 

 rad's are therefore correct. 



*It will be observed that Mr. Cnnrad continues the singular error of frequently dating my species of 

 the same memoir in different years, while some of tl em in the same memoir he inserts without a date, 

 viz. : Stnneyixia, subantjiilatv^', nbexns, &c. 



t At page 24.'> of Mr. Conrad's Synopsis in " Proceedings," this is given as a species ; at page 250 it is 

 made a synonym to glans Lea. 



