1906.] 



NATURAL SCIENCES OF PHILADELPHIA. 



523 



Patapsco River at Baltimore (H. W. Fowler); Elk Creek (A. H. 

 Grosh and H. W. Fowler) and Stony Creek, in Cecil county, Md. (T. D. 

 Keim and H. W. Fowler); Sussex county, Del. (E. D. Cope); lower 

 Delaware River (Dr. C. Arrott). 



Fig. 6. — Boleosoma nigrum maculaticeps (Cope). 

 laticeps Cope.) 



(Type of Boleosoma macu- 



Boleosoma nigrum maculatioeps (Cope). Fig. 6. 



Boleosoma maculaticeps Cope, Proc. Amer. Philos. Soc. Phila., XI, 1871 

 (January 7, 1S70), p. 269. Coui^es, No. 13,862 (type) to 13,876, A. N. S. P. 

 Upper waters of the Catawba River, N. Carolina. E. D. Cope. 



Also an example from the Yadkin River, N. C. E. D. Cope. 



Boleosoma effulgens Cope, I.e., p. 268, although considered distinct 

 by Cope, does not show any very striking points of difference according 

 to this account. Perhaps 6 scales below the lateral line is reliable. 



V- 



- ;;;^^g^i^2i!iij J. . 



Fig. 7. — Boleosoma nigrum mesceum (Cope). (Type of Poecilichthys mesceus Cope.) 



Boleosoma nigrum messeum (Cope). Fig. 7. 



Poecilichthys mesceus Cope, Proc. Acad. Nat. Sci. Phila., 1864, p. 232. Type, 



