168 ICHTHYOLOGIA OHIENSIS 



North American Fishes, Opsanus and Notropis. 

 {Ibid., vol. ii., no. 3, pp. 203, 204; 1818.) 



11. 17. Second Decade of new North- Ameri- 

 can Fishes. {Ibid., vol. ii., no. 3, pp. 204-206; 1818.) 



12. Discoveries in Natural History, made during 



a Journey through the Western Region of the United 



States. {Ibid., vol. iii., no. 5, pp. 354— 35 6 ; 1818.) 



This is a letter to Samuel L. Mitchill, President, and the other 

 members of the New York Lyceum of Natural History, dated from 

 Louisville, Kentucky, July 20, 18 18. It names thirteen genera and 

 twenty-six species of fishes, using provisional names which were 

 -afterward, in some instances, changed. 



13. Museum of Natural History. Further Dis- 

 coveries in Natural History, made during a Journey 

 through the Western Region of the United States. 

 {Ibid., vol. iii., no. 6, pp. 445-447; 18 18.) 



This title adds eight genera and twenty-two species to the list 

 published in the preceding title. 



14. Discoveries in Natural History made during 

 a journey through the Western Region of the United 

 States. {Ibid., vol. iv., no. 1, pp. 39-42; 1818.) 



This paper describes both the genus and species following: 

 Pomoxis annularis, Noturus flavus and Sarchirus vittatus. 



1 5 . General Account of the Discoveries made in 

 the Zoology of the Western States in 18 18. (Ibid., 

 vol. iv., no. 2, p. 107; 1818.) 



16. Description of a New Genus of North Ameri- 

 can Fresh-water Fish, Exoglossum. {American Jour- 

 nal of Science, 1st series, vol. i., pp. 155, 156; New 

 York, 18 18.) 



This paper describes Exoglossum vittatutn and Exoglossum 

 annul at urn. 



17. Description of three new genera of fluviatile 



