24 



Oedee VI. PLECTOGNATHI. 

 FAMILY GYMNODONTIDJE. 



Teteaodon, 



This fish, which belongs to the genus Tetraodon, and appa- 

 rently not described or figured in De Kay's Natural History, was 

 taken in the Hudson river in 1848, off Sing- Sing, Westchester 

 county, and presented by Joakim Ukmey, of Sing-Sing. 



Sub-Class II. CARTILAGINOUS FISHES. 



Oedee I. ELEUTHEROPOML 

 FAMILY STURIONUm 



Zoology— Part V 



Acipensee oxyehincus, Sharp-nosed Sturgeon. - - p. 346 



CRUSTACEA 



ORDER DECAPODA. 



Zoology— Part VH. 



Astacus baetonii.* Freshwater Lobster, or Crawfish, p. 23 



From West river, Warren county. 



Ceangon sEPTEMspiNOsus,t Bait Srimp. r 25 



From Haver straw bay. 



* Presented by Pierre Van Cortlandt. 

 f Presented by John Holmes. 



