52 



LEIDY, JOSEPH, M.D.-(Continued.) 



On Urnatella Gracilis and a new Species of Plumatella. (Read 

 October 15th.) 



Vol. vii. p. 191. October, 1851. 



Kemarks on Cristate! la. (November 2d.) 



N. S., p. 188. Nov. 1858. 



IN JOURNAL OF THE ACADEMY OF NATURAL SCIENCES. SECOND SERIES. 



Contributions towards a Knowledge of the Marine Invertebrate 

 Fauna of the Coasts of Ehode Island and New Jersey. 



Vol. iii. No. 2, p. 135. Dec. 1855. 

 Also Pamphlet. 



IN BINNEY'S TERRESTRIAL MOLLUSKS OF THE UNITED STATES. Vol. I. 



BOSTON. 1851. 



Special Anatomy of the Terrestrial Gasteropoda of the United 

 States, p. 198. 



Also Pamphlet. 



LESUEUR, 0, A,, Philadelphia, (Deceased,) 



IN JOURNAL OF THE ACADEMY OF NATURAL SCIENCES. IST SERIES. 



Description of six new Species of Firola, observed ^by Messrs. 

 Le Sueur and Peron, in the Mediterranean, in the months of 

 March and April, 1809. 



Vol. i, Part 1, No, 1, p. 3. May, 1817. 



Characters of a new Genus of (Pteropoda), and Descriptions of 

 three new Species, upon which it is formed. (Read April 15th.) 



Vol. i, Part 1, No. 3, p. 37. July, 1817. 



Description of several new Species of Cuttle Fish. (Read March 

 20th.) 



Vol. ii, Part 1, p. 86. March, 1821. 



Descriptions of several new Species of Ascidia. (Read March 

 25th.) 



Vol. iii, Part 1, p. 2. April, 1823. 



Description of a new Species of Cephalopoda of the Genus 

 Loligo. (Read February 3d.) 



Vol. iii, Part 2, p. 282. February, 1824. 



