MOON-EYE. 875 



90. Hyodon TEBGiaus LeSueur. 



moon-eye; Toothed Ilerriiig:; "Silver Bass." 



Hiodon tergisus, LsSuBUiS, Jonrn. Acad. Nat. Soi. Phila., 1, 1818, 364. 



Hyodon tergiius, DbKat, New York Faana, Fishes, 265.— Kiktlajjd, Boat. Jo urn, Nat. 



Hist.. V, 1846, 33:i— Cuv. et Val., Hist. Nat. des Polss., xix, 309.— Girakd, U. 8. 



Pac. R.R. Expl., Fish., 1869, 332.— Gunthbr, Cat. Fishes Brit. Mns , Yii, 375.— Jordan, 



Man. Vert., 2d Ed., 1878, 277, and of all recent authors. 

 Hiodon clodalus, LbSubuk, Joarn. Acad. Nat. Soi. Phila., i, 1818, "367. 

 GlosBodon harengoidea, Eafinbsqub, Amer. Monthly Mag., 1818, 354. 

 Glosaodon heterurus, Bavinesqce, Amer. Monthly Mag.. 1818, 354. 

 Hyodon veraalia, Rafinbsqub, loh. Oh., 1820, 43. 



Cyprinm {Abramisf) smitkii, Richardson, Fanna Bor.-Amer., iii, 1836, 110. 

 Leuoiaoua smitfeti of copyists. 



Gloaaodon amithii, Hbckbl, Rassegger's Reisen, 1843, 1033, (as a new genns of OypHnida}. 

 Deacripiioa. — Body oblong, closely compressed ; belly in front of venlrals very slightly 

 transversely caiinated, the edge ubtnse ; belly behind ventrals with the edge somewhat 

 sharp ; head short and blant, the eye very large, mach longer than the snout, 

 three in head ; pectoral fins shorter than head, not reaching nearly to ihe ventrals ; dorsal 

 fln nearly as long as high in front ; color brilliantly silvery, the back slightly darker ; 

 head 4^-3; depth 3 ; D. 12; A. 28; scales 5-58-8. Length about a foot. 



Habitat, Canada, Great Lake Region and entire Mississippi Valley ; abundant in 

 the larger streams and lakes. 



Diagnosis. — The Moon-eye may be known among Ohio fishes by its 

 compressed form and brilliant white color, in connection with the sharp 

 teeth and very large eye. This species may be known from the next 

 by the number of developed rays (12) in the dorsal fin. 



Habita.— This fish frequents the large rivers and lakes, very seldom 

 ascending small streams. It probably retires to deep waters in the win- 

 ter. It is a vigorous and " gamey " fish, usually freely taking the minnow 

 or fiy, and it is abundant both in Lake Erie and the Ohio, so that it is 

 often taken in large numbers in seines. From its great beauty, it is usually 

 salable where not well known, but its flesh is poor, and, like most 

 of its relatives, its bones are small and numerous. Dr. Estes considers it 

 " one of the smartest of fishes. They will come up, taste a fly, let go and 

 be gone before the angler has time to strike. Therefore to be a Moon- 

 eye flj-fisher, one must be very sharp and not read a book while cast- 

 ing," (Estes-Hallock, Sportsman's Gazetteer, 327). The Moon-eye feeds 

 on insects, Crustacea and small fishes. 



91. Hyodon alosoides (Rafinesque) Jordan and Gilbert. 



Amphiodon aloaoidea, Eafinbsqub, Journal de Physique, Paris, 1819. 

 Hyodw, amphiodon, Eafinbsqub, lohthyologia Ohiensis, 1820. 



Hyodon ehrysopais, Richardson, Fauna Boreali-Amer., iii, 1836, 232. — Jordan, BnlL U. S; 

 Nat. Mas , x, 1877, 68.— Jordan, Man. Vert., 2d Ed., 1878, 277. 



