TULLIBEE. 885 



Deseription.—BoAy stent, fagiform, compressed ; head stout ; month laige, the lower 

 jaw prcjeoting; eje rather large, longer than snont, abont fonr in head; teeth very 

 minute as in C. artedi, but appreciable on premaxillaries and tongue ; gill-rakers very 

 numerous, long and slender ; lower fins long ; color dark bluish above ; sides silvery, 

 with dark punctulations; fins all blue-black ; head 41; depth 3J; D. 10; A. 12 ; scales 

 7-86-6, Length, 15 to 18 inches; average weight, IJ pounds. 



Habitat, deep waters of Lake Michigan. Not yet noticed in Lake Erie. Especially 

 abundant in Grand Traverse Bay. 



Diagnosis. — From the Lake Herring, the larger size, stouter form, and 

 especially the deep blue-black color of the lower fins readily distinguish 

 it. 



Habits. — This species is as yet known only from the deep waters of 

 Lake Michigan where it is found in company with Coregonus hoyi. It is 

 occasionally seen in the markets of Chicago, sometimes in considerable 

 numbers. Its qualities as a food fish are probably similar to those of the 

 White-fish. 



98. Coregonus tullibie Richardson. 



Tnllibee ; " Mongrel TTIiite-fish." 



Salmo {Coregonus) tullibee, Eichardson, Fauna Bor.-Amer,, iii, 1836, 201. 

 Coregonus tullibee, Gukthbr, Cat. Fishes Brit. Mns., vi, 199. 

 Argyrosomus tullibee, Jokdan. Man. Vert., 2d Ed,, 361. 



Dcgoripiion— Body short, deep, compressed, shad-like, the dorsal and ventral curves 

 similar ; caudal peduncle short and deep ; head conic, compressed, much as in C. nig- 

 ripinnis ; mouth large, the maxillary as long as the eye, extending past the front of the 

 pupil, its supplemental bone narrowly ovatef, with prolonged points; jaws equal when 

 closed ; eye large, as long as snout, four and a half in head ; preorbital narrow ; supra- 

 orbital elongate, rectangular ; scales anteriorly considerably enlarged, their diameter 

 half larger than the diameter of those on the caudal peduncle ; color bluish above ; sides 

 white, punctate with fine dots ; each scale with a silvery area, these forming a series of 

 distinct longitudinal stripes ; head 4 ; depth 2 ; D. 11 ; A. 11 ; scales 8-74-7. Length, 

 18 inches. 



Habitat, Great Lakes and northward. 



Diagnosis — The Tullibee has the deep, compressed form of the Shad, 

 with the projecting lower jaw of the Lake Herring. These particulars 

 distinguish it at once from the other White-fishes. 



Habits. — Scarcely anything is known of the habits of the Tullibee. It 

 is certainly not abundant in any of the Great Lakes, although probably 

 occuring in all of them. I once received a photograph of a Tullibee, from 

 Dr. E. Sterling, of Cleveland, Ohio. The specimen had been taken in 

 Lake Erie and Dr. Sterling informed me that it was known to the fisher- 

 men as the " Mongrel White-fish," they thinking it to be a hybrid 

 between the White-fish and the Lake Herring. 



