168 BIBLIOGRAPHY OF PUBLICATIONS OF ISAAC LEA, LL. D. 



273. 



1874. Lea, Isaac. Description of fifty-two sxiecies of Unionidse. <^Journ. Acad. Nat. 

 ScL, Phila., viii. New series. Pp. 5-54. With plates I to XVIII. 



Eead before the Academy Natural Sciences, Pbila., September 15, 1873. Ordered to be 

 printed in the Joiim. of the Acad. Sept. 15, 1873. Extra copies printed for the author 

 March 30, 1874. (See Table of Contents of Journ. Acad. Nat. Sci., Phila., viii, n. a. Part I.) 

 This with No. 274 forms No. 275. Reprinted with plates in Observations on the Genus Unio, 

 vol. xiii. 



The descriptions of these species were published in various articles in the Proc. Acad. 

 Nat. Sci., Pbila., previous to the reading of this paper. The place whore each species was 

 first described is indicated after each species. 



Unio (jlobatus, Lea, pi. 1, fig. 1 5 



Proc. Acad. Nat. Sci.,Phila., 1871, p. 191. 

 Unio validug. Lea, i)l. 1, fig. 2 6 



Proc. Acad. Nat. Sci., Phila., 1871, p. 189. 

 TTnio subglobatus, Lea, pi. 1, fig. 3 . .-. 7 



Proc. Acad. Nat. Sci., Phila., 1871, p. 191. 

 ZFnio Lawii. Lea, pi. 2, fig. 4 .■ 8 



Proc. Acad. Nat. Sci., Phila., 1871, p. 189. 

 1l7iio obuncus. Lea, pi. 2, fig. 5 9 



Proc. Acad. Nat. Sci., Phila., 1871, p. 192. 

 XTnio reeurvatus. Lea, pi. 2, fig. 6 10 



Proc. Acad. Nat. Sci., Phila., 1871, p. 192. 

 Unio Tuscumbiensis, Lea, pi. 3, fig. 7 11 



Proc. Acad. Nat. Sci., Phila., 1871, p. 190. 

 Unio appressus. Lea, i)l. 3, fig. 8 12 



Proc. Acad. Nat. Sci., Phila., 1871, p. 189. 

 Unio radiosus. Lea, pi. 3, fig. 9 13 



Proc. Acad. Nat. Sci., Phila., 1871, p. 192. 

 Unio crudus. Lea, pi. 4, fig. 10 14 



Proc. Acad. Nat. Sci., Phila., 1871, p. 190. 

 TJjwo circumactus, Lea, pi. 4, fig. 11 15 



Proc. Acad. Nat. Sci., Phila., 1871, p. 192. 

 Unio pattinoides. Lea, pi. 4, fig. 12 16 



Proc. Acad. Nat. Sci., Phila., 1871, p. 193. 

 Unio littis. Lea, pi. 5, fig. 13 17 



Proc. Acad. Nat. Sci., Phila., 1871, p. 189. 

 Unio Cahabensis, Lea, pi. 5, fig. 14 17 



Proc. Acad. Nat. Sci., Phila., 1871, p. 190. 

 Unio simulans, Lea, pi. 5, fig. 15 18 



Proc. Acad. Nat. Sci., Phila., 1871, p. 190. 

 Unio dispansus. Lea, pi. 6, fig. IG 19 



Proc. Acad. Nat. Sci., Phila., 1871, p. 191. 

 Unio Santeensis, Lea, pi. 6, flg. 17 20 



Proc. Acad. Nat. Sci., Phila., 1871, p. 193. 

 Unio radiolus, Lea, pi. G, fig. 18 21 



Proc. Acad. Nat. Sci., Phila., 1871, p. 192. 

 Unio Steve7isii, Lea, pi. 7, fig. 19 22 



Proc. Acad. Nat. Sci., Phila., 1871, p. 188. 

 Unio Jeffreysianus, Lea, pi. 7, flg. 20 23 



Proc. Acad. Nat. Sci., Phila., 1871, p. 188. 

 Anodonta exilior, Lea, pi. 7, flg. 21 24 



Proc. Acad. Nat. Sci., Phila., 1871, p. 188. 

 Unio Macnielii, Lea, pi. 8, fig. 22 25 



Proc. Acad. Nat. Sci., Phila., 1869, p. 124. 

 UnioPealei, Lea, pl.8,flg.23 26 



Proc. Acad. Nat. ScL, Phila., 1871, p. 191. 

 Unio acuens, Lea, pi. 8, fig. 24 27 



Proc. Acad. Nat. Sci., Phila., 1871, p. 190. 

 Unio Jlavidus, Lea, pi. 9, flg. 25 28 



Proc. Acad. Nat. Sci., Phila.. 1872, p. 156. 

 Unio pauciplicatus. Lea, pi. 9, fig. 26 29 



Proc. Acad. Nat. Sci., Phila., 1872, p. 156. 

 Unio lenticular igjluea, pi. 9, flg. 27 30 



Proc. Acad. Nat. Sci., Phila., 1872, p. 155. 



