NORTH AMERICAN CONCHOLOGY. 9 



Barnes. — Reclamation of Unios: by D. II. Barnes. (Amer. 

 Journal of Science and Arts, 0. S., vol. xiii. No. 2, pp. 358-364. 

 Date of title, Jan. 1828.) 



[This paper forms a criticism of Valenciennes' Uniones in Humboldt and 

 Bonpland's Zoological Observations. — W. G. B.] 



Page. 



359 Unio ovata Vol. = TJ. cariosus Say. 



3 Dombeyanus = Conf. U. rugosus and U. undulatus. 



360 verrucosus = TJ. verrucosus b. Barnes. 



3G0 tuberculosus = TJ. verrucosus Barnes (young). 



360 rostratus = TJ. nasutus Say non Lam. 

 301 naviformis Lam. = TJ. cylindricus Say. 



361 rectus Lam. 



361 hians = Alasmodonta undulata Say. 



363 Anodonta glauca = An. marginata Say. 

 363 purpurea = Alasmodonta. 



HiEdrcth. — Observations on, and descriptions of, the Shells 

 found in the waters of the Muskingum River, Little Muskingum, 

 and Duck Creek, in the vicinity of Marietta, Ohio : by S. P. 

 IIildreth, M. D. (In the American Journal of Science, 0. S., 

 vol. xiv, pp. 276-291, 1828. With two plates.) 



TJnio crassus. 

 ellipticus. 

 cuneatus. 

 undulatus. 



plicatus. ^Var. oiundatus teste Barnes. — Eds. Jour.) 

 undatus. 



verrucosus purpureus. 

 verrucosus albus. 

 nodosus. 

 tuberculatus. 

 rugosus. 

 cylindricus. 

 phaseolus. 



(White var. of cuneatus teste Barnes. — Eds. Jour.) 

 orbiculatus. 

 foliatus [IIildreth]. 



(New and distinct, Barnes. — Eds. Journal.) 

 alatus. 

 praelongus. 

 gibbosus. 



