of the Geneva Pomolobas, Brevoortia, c&c. 299 



2. Alosa, Cuv. 1829. 



RSgne Animal, ed. 2, ii. p. 319 ; Regan, Ann. & Mag. Nat. Hist. (8) 

 xviii. 191G, p. 6. 



NoiMi Atlantic and Mediterranean. 



In my revision five species and six subspecies were 



recognized 



3. PoMOLOBUS, Eafin. 1820. 



Ichth. Ohien^is, p. 38 ; Jord. & Everin. Ball. U.S. Nat. Mu3. xlvii. 

 1896, p. 424. 



Distinguislied from Alosa by the prominent lower jaw, 

 witli its tip not includeL 

 Western North Atlantic. 



Si/nopsis of the Species. 



I. Lower jaw strong'ly projecting; 20 to 25 gill-rakers on lower part 



of anterior arcli. 



Anterior teeth persistent; maxillary extending to 

 below posterior part of eye; caudal peduncle 

 longer than deep ... \ 1. chrysochloris. 



Jaws' toothless; maxillary extending to below 



middle of eye ; caudal peduncle as long as deep. 2. medioeris. 



II. Lower jaw a little projecting ; 40 to 50 gill-rakers on lower part of 



anterior arch. 



Depth 3|, head 4§ in the length ; eye 4^ to 5 iu 



head (in specimens of 220-260 mm.) 3. cestivalis. 



Depth 3, head 4 to 4^ in the length ; eye 3^ to 4 in 



head (in specimens of 220-260 mm.) 4. pseudoharengiis. 



1. Pomolobus chrjjsocJiloris. 



Pomohhns chn/soc/iloris (Rafin. 1820), Jord. & Everm. Bull, U.S. Nat. 

 Mus. xlvii. 1896, p. 425, and 1900, tig. 187. * 



Depth of body 3f in the length, length of head 4. Snout 

 longer than diameter of eye, which is 6 in length of head; 

 maxillary extending to below posterior part of eye; lower 

 jaw strongly projecting; small conical teeth persistent in 

 prsemaxillaries and anterior part of lower jaw; 23 gill-rakers 

 on lower part of anterior arch. 56 scales in a longitudinal 

 series, 17 in a transverse series; ventral scutes 21 + 15. 

 Dorsal 18. Anal 18. Pelvics a little in advance of middle 

 of dorsal. Caudal peduncle longer than deep. Silvery; 

 back darker. 



Mississippi and southern coast of U.S.A. 



A single specimen, 280 mm. long, from Pensacola. 



20* 



