202 NEW YORK STATE MUSEUM 



114 Pomolobus cyanonoton (Storer) 



Glut Herring; Blueback 



Alosa cyanonoton STOKER, Proc. Best. Soc. Nat. Hist. II, 242, 1848, Hist. 



Fish. Mass. 101, pi. XXVII, fig. 1, 1867. 

 Pmnolobus aestivaUs GOODE & BEAN, Bull. Essex Inst. 24, 1879; JORDAN & 



EVERMANN, Bull. 47. U. S. Nat. Mus. 426, 1896, pi. LXXI, fig. 190, 1900; 



SMITH, Bull. U. S. F. C. XVII, 91, 1898. 

 Clupea aestivaUs JORDAN & GILBERT, Bull. 16, U. S. Nat. Mus. 267, 1883: 



MCDONALD, Fish & Fish. Ind. U. S. I, 579, pis. 209, 210, 1884, not 



Clupea aesti wills MITCHILL, Trans. Lit. & Phil. Soc. N. Y. I, 456, pi. V. 



fig. 6, 1815. 



Body moderately deep and compressed, its greatest depth two 

 sevenths of the length without caudal; least depth of caudal 

 peduncle two sevenths of greatest depth of body; head short, 

 one fifth of total length without caudal, the maxilla extending 

 to below the middle of the eye, its width about one third of its 

 length, lower jaw somewhat projecting, upper jaw notched; eye 

 smaller than in P. pseudoharengus, equal to snout and 

 one fourth of length of head, chiefly covered by an adipose mem- 

 brane; gill rakers about 44 below and 21 above the angle of the 

 first arch, the longest about equal to iris; lower caudal lobe the 

 longer, about equal to length of head. Dorsal fin begins in 

 advance of ventral origin, over the 13th row of scales; the 

 longest ray is about three fourths as long as the base of the fin 

 and twice as long as the last ray. Anal base two and one half 

 times as long as the longest ray and as long as the head with- 

 out the snout. Ventral under the 6th developed ray of dorsal, 

 the fin one half as long as the head; its axillary scale about one 

 half as long as the ventral fin. A small black spot behind the 

 opercle on the level of the top of the eye. Narrow dark streaks 

 on about five rows of scales above the median line. Peritoneum 

 very dark. D. iii, 15; A. ii, 18; V. i, 8; P. i, 15. Scales 13-53; 

 scutes 21 + 14. Above bluish, sides and gill covers with coppery 

 reflections, lower parts silvery. Irish golden. Here described 

 from a male specimen taken in the Potomac river and now in 

 the U. S. National Museum. 



Mitchill's name, a e s t i v a 1 i s , can not be applied with any 

 certainty to the "glut herring"; it appears to be a synonym of 



