264 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY - IV. 



serratuiv. Mouth essentially as in Clupea. Teeth none, or minute and 

 deciduous, (i ill-membranes separate, with about ilat branchiostegals. 

 I'sendobranchia' well developed. Dorsal opposite ventrals; anal tin 

 short. Stomach with long, blind sac; pyloric coeca in moderate imm- 

 her. Paeiiictnid Indian Oceans. (^/-M/w.s, sprat; elo.> ? , resemblance.) 



138. . bryoporii** Cope. 



Form compressed, moderately elongate. Belly rounded, except be- 

 tween ventral tins and vent, where it is angular. Maxillary broad. 

 Hat, reaching to opposite middle of pupil. Veutrals a little in front ol 

 middle of dorsal. Lower fins short. Pectorals 2 in distance to ven- 

 trals. Golden; bluish above. Top of head with a bifurcate depression, 

 tilled with delicate, branching mucous tubules; opercular and post- 

 frontal regions with similar tubes. Head 5; depth 4. D. 18; A. 18; 







scales 51-12. L. 14 inches. Coast of Alaska. (Cope.} 

 (Cope, Proc. Arner. Phil. Soc. Pkila. 187:3.) 



122. CL.UPEA Linuujus. 



Herrings. 



(Clupea, Alosa, Pomolobus, Mdetta, Spratdla, etc., of authors.) 

 (Liuiia-iiK, Syst. Nat. : type Clupea harengus L.) 



Body oblong, more or less compressed. Mouth moderate, terminal, 

 the jaws about equal, or the lower projecting Teeth feeble, variously 

 placed, rarely absent. Mandibles very deep at base, shutting within 

 the maxillaries. Gill-rakers more or less long and slender, numerous. 

 Scales thin, cycloid, deciduous, entire, rounded posteriorly. Dorsal tin 

 rather short, nearly median, beginning in advance of ventrals, its pos- 

 terior ray not prolonged in a filament. Ventrals present. Anal mod- 

 erate. Belly compressed, more or less strongly serrated, at least be 

 hind ventrals. Species very numerous; found in all seas. (Latin clnj>ci, 

 a herring.) 



Our species may be divided as follows: 



"VoiiHT \vitli aii <>vate pateh of teeth : \entral serrat HITS \\eak : hrn ii'u,s i ( 'i.rrr \ . 



//>< ii'jii.'i, miniliilin. 

 ' ' YIHIH rini' li-i-t li none. 



tClict-Us longer Ilian diTji, the prroprrrli' produced lorunid liclo\v. ( 1'i iMol.olii s 



K:.t. 



n. \'rul ral xi-rs-al HITS \\calc ............................................ sagas. 



nil. Ventral -i I i :il nrrs >l mn^. 



/*. .laws with persistent t.rrth ................................. cliryxocliltiri.i. 



hl>. .laws wit Ih'iit pi-rsisirai I ei-t !i \ M i i r n \ \'al.). 



lie. -per than l>n^; slia'l (ALO8A (. u\ irr) 



