236 PROCEEDINQS OF THE ACADEMY OF [1886. 



Pygosteus occidenialis var. mainensis Jordan, Man, Vert., 348, 1876 



(Kennebec Riv.). 

 Gasterosteus nebulosus Agassiz, Lake Superior, 310, plate iv, fig. 4, 1850 



(Lake Superior). 

 Pygosteus nehulosus Jordan, Fish. Indiana, 31, 1874 (Lake Michigan); 



Jordan and Copeland, Checklist N. A. Fresh Water Fish., 140, 1876 



(Name only); Nelson, Bull. 111. Lab. Nat. Hist., i, 42, 1877 (Lake 



Michigan). 

 Pygosteus ocndentalls var. nebulosus Jordan, Man. Vert., 248, 1874 ; 



Jordan, Bull. Ills. Lab. Nat. Hist., ii, 51, 1877 (Lake Michigan); 



Jordan, Cat. Fresh "Water Fish. N. A., 441, 1878 (Name only). 

 Gasterosteus dekayi Agassiz, "Lake Superior, 311," 1850 (after Dekay); 



Putnam, "Proc. Essex Inst., 148, 155 ;" Putnam, Bull. Mus. 



Comp. Zool. i, 11, 1863 ; Storer, Hist. Fish. Mass., 91, plate viii, fig. 



3, 1867 (Massachusetts). 

 Pygosteus dekayi Gill, Cat. Fish. East Coast N. A., 39, 1861 (Name 



only). 

 Gasterostea dekayi Sauvage, Revision des Epinoches, 31, 1874 (New 



York). 

 Gasterostea blancTiardi Sauvage, Revision des Epinoches, 32, 1874 



(New York); Bean, Proc. U. S. Nat. Mus., 1879, 31 (Boston). 



1 ft. P. pungitius brachypoda. 



Gasterosteus jmngitius brachypoda Bean, Bull. U. S. Nat. Mus., xv, 

 129, 1879 (Oosooadlin Mountain Streams and Lakes); Bean, Proc. 

 U. S. Nat. Mus., 1880, 77 (American Harbor); Bean, Arctic Cruise, 

 118, 1881 (Elephant Point, near Icy Cape); Bean, Proc. U. S. Nat. 

 Mus., 1881, 240 (St. Paul, Kodiak ; Unga Island, Shumagins ; Iliu- 

 liuk Lake, Unalaska ; St. Paul Island, Bering Sea ; St. Michaels ; 

 Port Clarence ; Elephant Point ; Eschscholtz Bay ; Icy Cape, Arctic 

 Ocean; Alaska; Bean, Proc. U. S. Nat. Mus., 1881, 270 (Pacific 

 South of Bering Strait); Jordan & Gilbert, Syn. N. A. Fish., 394, 

 1883; Bean, BuU. U. S. Nat. Mus., xxi, 19, 1883 (St. Michaels, Alaska). 

 Gasterosteus pungitius Stejneger, Proc. U. S. Nat. Mus., 1883, 65 

 (Commander Islands). 



Habitat. Shores of Northern Europe and Eastern America 

 South to New York, also in the great Lakes and northward ; var. 

 brachypoda in the North Pacific, the specimens examined by me 

 are from Calumet Lake, Ills., and from Massachusetts. 



The synonom^^ of this species, as given above, needs a word of 

 remark. 



The pungitivus of Walbaum is of course identical with the 

 pungitius of Linnaeus. 



I cannot see that east coast specimens, representing the occi- 

 dentalis of Cuvier and Valenciennes, and that of Dekay, differ 



