NO. iOG->. A'EW LAKE MEliinXa—JORDAX AND EVERMAW. IQ^ 



the best l^Tiitefish, Coregoniis alhus and Goregonus clwpeiformis. 

 It is therefore a species worthy of careful attention from the propa- 

 gators of fish. It is chxinied that it is rapidly increasing in abun- 

 dance and that it was virtually unknown until within the past ten 

 years. INlost of the fishermen claim never to have seen examples of 



2 to 3 pounds until Avithin four or five years. It is locally known 

 as the "Jumbo Herring," as it reaches a larger size than any other 

 " Lake Herring " except the Tullibee of the northwestern lakes 

 {Argyrosomns tullibee). 



It is believed by many fishermen that the Jumbo Herring is the 

 product of a cross between the Erie Whitefish {Coregonus alhus) 

 and the Lake Herring {Argyrosomus artedi). This belief is Avith- 

 out foundation. It rests on the fact that at the Put-in-Bay Hatchery 

 attempts have been made to fertilize Whitefish eggs with the milt 

 of the Lake Herring, in default of the milt of its own species. To 

 test this matter, Mr. Frank N. Clark, of the hatchery at Northville, 

 Michigan, undertook the same experiment under carefully prepared 

 conditions. In no case was the egg of a Whitefish fertilized by the 

 milt of the Lake Herring, and the hybridization of the two species 

 is quite imj^robable. 



The following are our field notes on this species : 



Jumbo Herring, Port Stanley, July 29, 1908. Head 4S ; depth 3J ; length 16^ ; 

 scales 7-9-80. D. 2, 9; A. 12. Head much deeper and less pointed than in 

 the Lake Huron herring; lower jaw less projecting, almost even. Maxillary 



3 in head. Supplemental maxillary a little narrower than in the other, not 

 twice as long as broad, reaching front of pupil. Eye 3* in head. Suborbital 

 to mucous channel, about J as broad as pupil below eye, the whole width of 

 bone not much greater than pupil. Gillrakers about 30 below arch. Color, 

 olive above, sides silvery, a little less bluish than in the other, the stripes on 

 scales much less distinct. Dorsal, pectoral, and caudal edged with black. 

 Ventral without black tips. Caudal peduncle 1§ in length from adipose. 

 Greatest depth of tail equal to its length. Cooked, the Jumbo Herring is a 

 fine, rich, well-flavored fish, as good as Whitefish. The Lake Huron herring 

 is rather poor and tasteless, though as good as ordinary artedi. 



ARGYROSOMUS HURONIUS Jordan and Evermann, new species. 

 LAKE HURON CISCO. 



Head 4| in length to base of caudal; depth 4^; depth of caudal 

 peduncle 2^% in head ; eye 5 ; snout 3§ ; interorbital space 3^ ; length 

 of maxillary from tip of snout 3; D. 0; A. 11; scales in lateral 

 line 80; between lateral line and origin of dorsal 8; between occiput 

 and dorsal 30. 



Body notably elongate, elliptical, with slender, pointed head and 

 slender tail, less compressed than in the other species of the genus; 

 head small, the snout long and pointed; lower jaw not closing 

 within the upper, but extending slightly beyond it; maxillary reach- 

 ing a point below center of pupil, its Avidth contained 3 times in the 



