SAY 251 



15. Descriptions of Univalve Sliells of the United States. — Journ. 

 Acad. Piiilad. II. p. 149. 



16. An account of some of tlie Marine Shells of the United States. — 

 Journ. Acad. Philad. II. pp. 221, 257, 30%— F^russ. Bull. 1823, II. 

 pp. 71, 458. 



17. On a Quadruped belonging to the order Rodentia (Isodon pilo- 



rides). — Journ. Acad. Philad. II. p. 330 Zool. Journ. 1. p. 227. — 



Isis, 1827, IX. p. 750. 



18. On a South American species of CEstrus which inhabits the human 

 body. — Journ. Acad. Philad. II. p. 353. — Fdruss. Bull. 1823, V. 

 p. 264. 



19. Description of Univalve terrestrial and fluviatile Shells of the 

 United States. — Journ. Acad. Philad.Il. p. 373.— Feruss. Bull. 1823, 

 III. p. 259. 



20. Descriptions of Dipterous Insects of the United States. — Journ. 

 Acad. Philad. III. pp. 9, 13.— Firms. Bull. 1824, III. p. 109. 



21. Descriptions of Coleopterous Insects collected in the late expedi- 

 tion to the Rocky Mountains under the command of Major Long. 

 —Journ. Acad. Philad. III. pp. 139, 238, 298, 403 ; VI. p. 83. 



22. An account of some of the Fossil Shells of Maryland. — Journ. 

 Acad. Philad. IV. p. 124. 



23. On the Freshwater and Land Tortoises of the United States. — 

 Journ. Acad. Philad. IV. p. W3.— Feruss. Bull. VI. p. 271. 



24. Descriptions of three new species of Coluber inhabiting the United 

 States.— Journ. Acad. Philad. IV. p. 237. 



25. On two genera and several species of Crinoidea. — Journ. Acad. 



Nat. Sc. Philad. IV. p. 289 Zool. Journ. II. p. 311 Firuss. Bull. 



1827, XII. p. 403.— Isis, 1830, X. p. 1034. 



26. On a new species of Modiola (M. opifex). — Journ. Acad. Philad. 

 IV. p. 369,.— Firuss. Bull. 1826, VIII. p. 138. 



27- Descriptions of new Hemipterous Insects, collected in the expedi- 

 tion to the Rocky Mountains under the command of Major Long. 

 — Journ. Acad. Philad. IV. p. 301. — Feruss. Bull. 1826, VII. 

 p. 401. 



28. Descriptions of new species of Hister and Hololepta inhabiting the 

 United States. — Journ. Acad. Philad. V. p. 32. — Feruss. Bull. 1827, 

 XI. p. 156. 



29. On the species of the Linnaean genus Asterias inhabiting the coast 

 of the United States. — Journ. Acad. Philad. V. p. 141 — Feruss. Bull. 



1827, XII. p. 401. 



30. Descriptions of new Coleopterous Insects inhabiting the United 

 States.— Journ. Acad. Philad. V. pp. 160, 237, 293.— Firuss. BuU. 



1828, XIV. p. ] 1-9. 



31. Descriptions of Marine Shells recently discovered on the coast of 



the United States Journ. Acad. Philad. V. p. 201.— Firuss. Bull. 



1827, XII. p. 398. 



32. On the species of the Linnsean genus Echinus inhabiting the coast 

 of the United States. — Journ, Acad. Philad. V. p. 225. — Firuss. 

 Bull. 1828, XIV. p. 299. 



33. Monograph of North American Insects of the genus Cicindela.— 

 Trans. Am. Phil. Soc. ser. 2, I. p. 401 — Firuss. Bull. 1825. 



34. Description of Insects of the families of Carabici and Hydrocanihari 



