L. VAILLANT. — SUR l'œUVRE ICHTHYOLOGIQUE DE LESUEUR 19 



the name of Catostomus ; and the cliaracters of this genus, with those of 

 its species, indicated. Read September 16, 1817 {Id., id., p. 88-96 et 102- 

 111. 1817). 



7. — Description of four new species, and two varietis, of the genus 

 Hydrargira, Read october 21, 1817 {Id., id., p. 126-134. 1817). 



8. — Description of several new species of North American Fishcs. 

 Read Mardi 3, 1818 {Id., T. 1., 2'"° partie, p. 222-233 et 3o9-368. 1818). 



9. — Description of several new species of the genus Esox. of North 

 America. Read March 3 1818 {Id., id., p. 413-417. 1818). 



10. — Description of a new genus and of several new species of fresh 

 water fish, indigenous to the Unitedt-Slates. Read December 19, 1820. 

 {Id., T. Il, 1" partie, p. 2-8. 1820). 



11. — Description of two new species of Exocetus. Read December 19, 

 1820 (M, id., p. 8-11. 1820). 



12. — Observations on several gênera and species of llshes belonging 

 to the nalural family of Esoees {Id., id., p. 124-138. 1820). 



13. — Description of five new species ol the genus Clchla of Cuvier. 

 Read June 11 1822 (Id., T. Il, 2"'' partie, p. 214-221. 1822). 



14. — Description of three new species ot the genus Sciœna. Read 

 July 26, 1822 {Id., id., p. 231-256. 1822). 



13. — Description of a Squalus, of a very large size, which was taken 

 on the coast of New-Jersey. Read Nov. 5, 1822 {Id., id., p. 343-332. 1822). 

 — Cette note se termine par la description des deux nouvelles espèces de 

 Squales d'Australie. 



16. — Description of two new species of the genus Ratrachoid of Lacé- 

 pède. Read March 15. 1824 {Id., T. III, 2"'° partie, p. 393-403. 1824). 



17. — Description of several species of the Linnœan genus Raia, of 

 North America. Read August 17, 1824 {Id., T. IV, 1" partie, p. 100-121, 

 1824). 



18. — Description of two new species of the Linnœan genus Bknnius. 

 Read December 21, 1824 {Id., ï. IV, 2"" partie, p. ;i61-364. 1823). 



19. — Description of several species of Chondropterygious Fishes of 

 North America with their varieties. Read Oct.l7, 1817 {Tmns.Ainer. Pltil. 

 Soc. Philadelphia. New séries, T. I, p. 383-394, PI. XII. 1818). 



20. — Notice de quehjues Poissons découverts dans les lacs du Haut- 

 Canada, durant l'été de 1816 {Mém. du Muséum d'Histoire naturelle, T. V, 

 p. 148-161, PI. XVI et XVII. 1819). 



21. — Description of four new species of Murœnophis. Read July 19, 

 1823 {Journ. Acad. Nat. Se. Philadelphia, T. V, 1^« partie, p. 107-109, 

 PI, IV. 1823). 



22. — Description of a new Fish of the genus Salmo. Read January 11, 

 1823 {Id., T. V, r'^ partie, p. 48-51, Pi. III. 1823). 



23. — Description of a new species of tiie genus Sauras Cuv. {S. minu- 

 tus) Read July 26. 1823 {.loum. Acad. .\at. Se. Philadelphia, T. V, 1" part, 

 I). 118-119, PI. V. 1823). 



