300 Sir, C T. Regan on the Clupeoid Fishes 



2. Pomolohiis mediocris. 



Pomolohus mediocris (Mitchill, 18 lo), Jord. & Everm. Bull. U.S. Nat. 

 Mus. xlvii. 1896, p. 425, and 1900, fig. 188. 



Depth of body 3|^ to 3| in the lengtli, lengtli of head 4 to 

 4|-. Snout lono;er than diameter of eye, which is 5 in letigtli 

 of head ; maxillary extending to below middle of eye or a 

 little beyond ; lower jaw strongly projecting; jaws toothless; 

 21 or 22 gill-rakers on lower part of anterior arch. 56 scales 

 in a longitudinal series, 17 in a transverse series ; ventral 

 scutes 21-22 + 16. Dorsal 16-18. Anal 20-22. Pelvics 

 in advance of middle of dorsal. Caudal peduncle as long 

 as deep. Silvery ; back darker ; each scale on sides with a 

 dark spot. 



Atlantic coast of U.S.A. 



Three specimens, 280 to 300 mm. long, from the Potomac 

 and Woods Hole. 



3. Pomolohus ffstivalia. 



Pomolobus ^stivalis (hiitc\i\\\, 1815), Jord. & Everm. Bull. U.S. Nat. 

 Mu8. xlvii. 1896, p. 426, and 1900, fig. 190. 



Depth of body 3^ in the length, length of head df. Snout 

 a little longer than diameter of eye, which is 4| to 5 in the 

 length of head ; maxillary extending to below anterior part 

 or middle of eye; lower jaw a little projecting ; jaws tooth- 

 less; 44 to 47 gill-rakers on lower part of anterior arch. 52 

 to 55 scales in a longitudinal series, 15 or 16 in a transverse 

 series ; ventral scutes 20+14. Dorsal 17-18. Anal 18-20. 

 Pelvics below anterior half of dorsal. Caudal peduncle 

 longer than deep. Silvery ; back darker. 



Atlantic coast of U.S.A. 



Two specimens, 220 and 260 mm. in total length. 



4. Pomolohus pseudoharengus. 



Pomolohus pseudoharengtis (Wilson, c. 1811), Jord. & Everm, 6uM 

 U.S. Nat. Mus. xlvii. 1896, p. 426, and 1900, fig. 189. 



Depth of body 3 in the length, length of head 4 to 4^. 

 Snout as long as or shorter than diameter of eye, which is 3A- 

 to 4 in the length of head ; maxillary extending to below 

 middle of eye or a little bej^ond ; lower jaw a little pro- 

 jecting ; jaws toothless ; 40 to 42 gill-rakers on lower part of 

 anterior arch. 52 to 56 scales in a longitudinal series, 15 

 to 17 in a transverse series; ventral scutes 20-21 + 12-14. 



