NO. 1662. NEW TAKE rrERmNG— JORDAN AND EVERMANN. 1^9 



Length ISn inelies; head 4J ; depth 4?; eye 4* in head; maxillary to end of 

 snout 3s ; maxillary proper 3f ; supplemental maxillary with broad hook, and 

 more than twice as long as broad; maxillary barely reaching front of pupil; 

 snout 35; jaws equal at tip; chin projecting; scales, S-78-S; gillrakers, 14+29. 

 Pectoral lA in head: dorsal 15 ; dorsal rays 10; anal 10. 



Color dark olive with bluish luster above and sparse dark points on scales; 

 tip of jaws dark; dark spot on preopercle as in the other species; edge of all 

 lins dusky; maxillary rather dark; caudal slender, least depth less than half, 

 its greatest depth a little more than half length. 



;rhis seems to be the same as the Lake Huron herring we got at Port Stanley. 

 Maxillary barely to front of pupil. 



The following field notes were taken in Lake Erie : 



Lake Huron Herring, Port Stanley. Specimen 18 inches long. Head 5i; 

 depth 5; scales 8-10-83. Dorsal 10; anal 10. Body elongate, lanceolate, not 

 much compressed. Head pointed, lower jaw distinctly projecting. Maxillary 

 Si inches head, reaching front of pupil. Eye 4^ in head. Snout 3i. Max- 

 illary on level of pupil. Supplemental maxillary half longer than broad, with 

 a posterior hook. Depth of head under middle of eye A length of head. Sub- 

 orbital to mucous channel nearly as broad as pupil. The bone § of breadth of 

 eye. Pectoral If in head ; ventral If ; dorsal I3. 



Color. — Olive sides, very silvery, with lighter streaks along rows 

 of scales. Dorsal, anal, pectoral, caudal, and ventral edged with 

 blackish (smaller fish with the ventrals white). Depth of caudal 

 peduncle at base of fin 2 in length from adipose fin. Gillrakers about 

 35 below angle. Greatest depth of tail If in its length. 



This differs from the Jumbo Herring in being more slender, less 

 compressed, with slimmer, more pointed head, narrower and much 

 more projecting lower jaw, and much slimmer and rounder caudal 

 peduncle. 



ARGYROSOMUS ZENITHICUS Jordan and Evermann, new species. 

 LONGJAW OF LAKE SUPERIOR. 



Head 3f in length to base of caudal; depth 4f ; depth of caudal 

 peduncle 3^ in head; eye 5^; snout 3|; mouth larger than in re- 

 lated species, almost as large as in Argyrosomvs hoyi; maxillary 

 to tip of upper jaw 2f in head; scales in lateral line 72; between 

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

 30; D. 10; A. 12. 



Form of body elongate, compressed, the width contained about 2f 

 times in the length of head; snout pointed; jaws equal in length, the 

 lower usually closing with the upper lip, as in A. hoyi. Maxillary 

 extending to a point below center of pupil, the supplemental part 

 wider than that below it. Gillrakers on first arch 17-|-25 ; very slen 

 der ; the longest contained 6 times in the length of head. 



Origin of dorsal midway between tip of snout and base of caudal, 

 its height contained 1§ times in length of head; base of adipose 

 dorsal less in length than height, the height about equal to diameter 



