10 CATALOGUE OF AUTHORS. 



Description of a species of Helix newly discovered in the United 

 States. In the same Journal. Vol. iv. p. 241. 



Conrad, Timothy A. Philadelphia, Penn. American Marine 

 Conchology, or descriptions and colored figures of the Shells 

 of the Atlantic coast of North America. 8vo. pp. 72, 16 plates. 

 Philadelphia, 1831. 

 New Fresh- Water Shells of the United States, with colored 

 illustrations, and a Monograph of the genus Anculotus of Say, 

 also a Synopsis of the American Naiades. 12mo. pp. 76, 

 8 plates. Philadelphia, 1834. 



DeKay, James E., M. D. New York. A Report on the Zoology 

 of New York, containing a Catalogue of the Animals of that 

 State, being a part of the Annual Report on the Geological 

 Survey for 1840, pp. 7 — 36. Document of the Assembly of 

 New York, No. 50. Albany, January, 1840, 



Zoology of Neio York ; or the New York Fauna. Part V. Mol- 

 lusca. 4to. pp. 270, 40 plates. Albany, 1843. Published by 

 order of the Legislature of New York. 

 Gould, Augustus A., M. D. Boston, Massachusetts. A Mon- 

 ograph of the species of Pupa found in the United States, 

 with figures. Boston Journal of Natural History, Vol. iii. 

 pp. 395 — 404. July, 1840, and Vol. iv. pp. 351 — 360. 

 Jan. 1841. Same in pamphlet form. 



Results of an Examination of the Shells of Massachusetts, and 

 their Geographical Distribution. Same Journal. Vol. iii. pp. 

 483—494. November, 1840. 



A Report on the Invertebrata of Massachusetts, comprising the 

 Mollusca, Crustacea, Annelida, and Radiata, pp. 373, 8vo. 

 with figures. Boston and Cambridge, 1841. Published by 

 order of the Legislature of Massachusetts. 



Green, Jacob, M. D. Professor of Chemistry in Jefferson Col- 

 lege, Pennsylvania. Note annexed to a Memoir, containing 

 a description of Helix Pennsylvanica. Contributions of Mac- 

 lurian Lyceum, No. 1, p. S. Philadelphia. January, 1827. 

 Notes of a Naturalist. Doughty's Cabinet of Natural History, 

 Vol. ii. p. 291, and Vol. iii. p. 35. Philadelphia, 1833. 



Haldeman, S. Stehman. Columbia, Pennsylvania. A Mono- 

 graph of the Limniades and other Fresh- Water Univalve Shells 



