Jordan and Everina?in. — Fishes of North America. 413 



Generic characters iucluded above. (vnea)?/!:, hyoid; odoi'c, tooth; 

 "liyoid"' is the boue shaped like the letter T, formmg the base of the 

 tongue.) 



Ami'HIodon {aix(()i, both ; 660U5, tooth) : 



(I. Belly ill front of ventrals carinateil ; dorsal with dcvoloped rays. alosoides, 673. 



HioDON : 

 aa. Bolly in front of ventrals not eariiiated ; dorsal with 11 or I.: duveldpiMl rays. 



b. Belly behind ventrals oarinated ; eye :5 in head. tekgisu.s, 074. 



bb. Belly uowheie cariuated ; eye 2y., in head. selenops, G75. 



Subgenus AMPHIODON, Rafinesque. 



67;{. HIODON ALOSOIDKS (Kafinesque). 

 (L.\ (^aEsciiE ; Naccaysu.) 

 Head U; depth 3i; eye 3i. D. 9; A. 32; scales 6-56-7. Body closely 

 compressed, becoming deep in the adult, the ventral edge everywhere cari- 

 nated. Maxillary reaching to beyond middle of eye. Caudal peduncle 

 rather stouter than in H. tergi.situ, and the tin not so deeply forked. Back 

 less arched and snout blunter than in the other species, the mouth larger 

 and more oblique. Pectorals longer and ventrals shorter than in H. icr- 

 (jisua. Bluish; sides silvery, with golden luster. Ohio River and north 

 to the Saskatchewan; common northwestward. (Jlosa, shad; elSor, like.) 

 AmjihiodoH alosoides, (misprinted afreojdes), Rafinesque, Journ. Phys., Paris, 421, I8H1, Ohio R. 

 Hi/otluH ainphiodon, Rafinesque, Ichth. Oh., 42, 1820, Ohio River near the Falls. 

 llyodon chniaopKis, Richardson, Fauna Bor.-Amer., iii, 232, 1836, Cumberland House, Sas- 

 katchewan River ; Jordan, Bull. U.S. Nat. Mus.,x, 68, 1877. 

 Hijodon cdosoides, Jordan & Gilbert, Synopsis, 2.59, 1883. 



Subgenus HIODON. 

 674. HIODOX TEKGISrS, Le Sueur. 

 (Moon Eye; Toothed Herring. ) 

 Head 4i; depth 3; eye 3. D. 12; A. 28; scales 5-55-7. Vertebni? 30 + 

 31 = 61. Body oblong, moderately compressed. Eye large, the maxillary 

 barely reaching its middle. Pectoral tins not reaching ventrals, the lat- 

 ter just short of vent. Belly behind ventrals somewhat carinate, but not 

 before ventrals. Color brilliantly silvery, olive-shaded above. Length 

 12 inches. Great Lakes and the Mississippi Valley; north to Assiniboine 

 River; abundant in the larger streams. One of our handsomest fishes, 

 not valued as food, the flesh being dry and full of small bones, {teryisus, 

 scoured or polished.) 



IliodoH tergisiis,* Le SuEUR, Journ. Ac. Nat. Sri. Phila., i, 1818, 364, Ohio River. 

 Glossodon harengoides* Rafinesque, Araer. Month. Mag., 11, September, 1818, 351, Ohio River. 

 Glossudon heterurus, Rafinesque, I. c, 1818, .354, Falls of Ohio River. 



Hiodon clodaliis, Le Sueur, Journ. Ac. Nat. Sci. Phila., i, 181S, 367, Ohio River at Pittsburg. 

 Hijodon renialls, Rafinesque, Ich. Oh., 42, 1820, Ohio River. 



O/jiriiiiis (/IbraiHis .') smMii, Richardson, Fauna, Bor.-Amer., 11 r, 110, 1836, Richelieu River. 

 Ihjndfm claudaUis, CuviER A: Valenciennes, His. Nat. Poiss., xix, 313, IS-IC); after Le Sueur. 

 Hijodon tenjisus, Gunther, Cat., vii, 375, 1868; Jordan, Bui. U. S. Nat. Mus., x, t>S, 1877; Jordan 

 & Gilbert, Synopsis, 259, 1883. 



*We do not know which of the nearly synchronous specific names <ej<7i«H« and lunenijuUles is 

 entitled to precedence. Tenjisiis is in common use, was accompanied by a better dcscrij)tiou and 

 is a better name. 



