No. 112.J 



35 



b Unio ehombula, Lam. 



c Unio 



GEORGINA, 



Lam. 



d Unio 



CARINIFERA, 



Lam. 



e Unio 



COARCTATA, 



Lam. 



/ Unio 



RARISULCATA, 



,Lam. 



g Unio 



SULCIDENS, 



Lam. 



h Unio glabrata, Lam. 



Is credited by him to the Hudson river ; 

 from which I have one measuring 3.37 

 & 1.87. 



From Lake G-eorge. 



From the Hudson river. 



From the Hudson river, and much like 

 U. carinifera. 



Frcjm Lake Champlain. 



From Connecticut river ; and one from 

 the Schuylkill, measuring 2.13 & 1.33. 



Credited by Lamarck to the Ohio river ; 

 much resembles U. pibbosus, Barnes, 

 as It was called three years after the 

 other had been named. 



From the Hiver Potomac, one measures 3.30 & 1.60, 



From South-Carolina, two measuring 2.25 & 1.25 ; 3.25 & 1.80. 



From Delaware river, two measuring 3.27 & 1.75; 3.10 & 2.20, 



From the Schuylkill (yellowish inside), one measures 2.13 & 1.13. 



I have a shell from Ohio, said to be of this species, which is a monster, 

 and measures 8.25 & 4.35 inches. 



10 Unio cariosus, Say. Dekay's New- York Fauna, Part V, pa. 193, 



pi. 21, f. 243 and 244 (variety). 



U. id Lam. U. cariosus, Gould, 



U. id Barnes. U. id Lea. 



A single specimen from the creek at BuflPalo, furnished by Dr. Sartwell, 

 of Penn-Yan. Not common here, but wide spread over the State. 



11 Un-io rectus. Lam. Dekay's New- York Fauna, Part V, pa. 195. 

 U. id Adams, Lea. 



Unio pr^longus, Barnes, Hildreth. 

 Mya pr^longa. Wood, 



A single specimen from the creek at Buffalo, and furnished by Dr. Sart- 

 well. It is called an Ohio shell. 



12 Unio rosaceus, Dekay. New- York Fauna, Part V, pa. 192, pi. 29, 



f. 355 (adult), 356 (young); pi. 40, f. 357 

 (sexual variety). 



The four varieties, found in Seneca lake, were contributed by Dr. Sart- 

 well. This lake seems to be the only locality; for this species is not 

 to be confounded with the pink variety of U. It.teolus, Lam., which is 

 noticed in the synopsis of Mr. Lea, under this species. 



