CATALOGUE OF VERTEBRATES. 691 



"The Delaware River no longer produces salmon, but the 

 occasional capture of an isolated specimen, warrants the addition 

 of this species to our list of the State's ichthyic fauna. Three 

 several endeavors have been made to ' plant ' the salmon in the 

 Delaware, but without success, which cannot be well accounted 

 for, as the water generally is very clear from Trenton upwards, 

 and trout are not unfrequently met with" (1868). 



The Delaware, the Raritan and the Passaic have been re-stocked 

 (1874), with similiarly unfavorable results, as in case of pre- 

 ceding species. The water is claimed to be " too muddy." 



S. fontinalis, Mitch, [immaculatus, canadensis, hudsonicus.) Brook 

 Trout. Speckled Trout. 



Live in fresh water nearly permanently ; moijth and eye 

 large ; red spots on sides ; back mottled with dark patches ; 

 dorsal and caudal fins barred ; belly in males often red. Vm\ 

 canadensis refers to specimens that run to sea — " salmon trout " — 

 which then are plain silvery. Many local varieties. Dorsal 

 rays, 10; anal rays, 9; length, 18 inches. 



" The mountain streams in the northern portions of the State 

 generally abound in trout, and those brooks that empty directly 

 into the Delaware, in Sussex county, produce very large speci- 

 mens, which latter are found in the river in midsummer, near 

 the mouths of t^ie small streams." 



Family PERCOPSIDiE. 



Lateral margins of upper jaw formed by the premaxillaries bearing 

 villiform teeth ; mouth small ; bones of head cavernous ; scales, 

 ctenoid. Branchiostegals, 6; dorsal rays, 11 ; aual rays, 8. 



PERCOPSIS, Ag. 



P. guttatus, Ag. Trout Perch. 



Pale olivaceous, with silvery stripe along lateral line ; obscure 

 dots or spots above ; head slender and conical. Length, 6 inches. 

 Spawns in spring. Delaware River, northward and westward. 



