294 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY — IV. 



Var. specta"MC52 Cope. — Wilton Smelt. 



Slender. Head short, with very large eye, and short moutli aud max- 

 illary. Maxillary not extending beyond middle of pnpil. Eye 3 in head. 

 Head 44 ; depth 8^-. D. 10; A. 15; Lat. 1. OG. L. transv. 10. Small. 

 Wilton Pond, Kennebec County, Maine; land-locked in fresh water. 

 [Cope.) 

 (Osmcrus spectrum Cope, Proc. Amer. Phil. Soc. Pliila. 1870, 490.) 



Var. afoliSOtfi Cope. — Cohessicontic Smelt. 



Stouter. Eye smaller. Maxillary reaching posterior margin of pupil. 

 Eye 4i in head. Head 42 ; depth 7. Lat. 1. 08. L. transv. IG. Land- 

 locked in Cobessicontic Lake, Kennebec County, Maine. {Cope.) 



{Osmeras ahbotti Cope, Proc. Amer. Phil. Soc. Phila. 1870, 490.) 



481. <>. deastex Steiudachner. 



Dark brown above ; sides silvery or golden ; head and body with dark 

 points. Eye two-thirds length of snout. Teeth as in 0. eperlanus and 

 0. 7nordax; maxillary reaching posterior margin of eye, its length five 

 times in distance from tip of lower jaw to dorsal. Height of dorsal half 

 length of head; height of anal two- sevenths. Head 4; depth 5;}. D. 10; 

 A. 13 ; Y. 8 ; Lat. 1. GG ; L. transv. 16. Port Clarence, Alaska, to north- 

 ern China. (I>eaw, MSS.) 



(Steindachuer, Sitzungsb. Kais. Akad. Wiss. Wieu, Ixi, 1870, 429.) 



143.— IIYPOMESUS Gill. 

 Surf Smelts. 



(Gill, Proc. Acad. Nat. Sci. Phila. 1832, 169: type Argentina pretiosa Grd.) 



Body rather elongate, moderately compressed, covered with thin scales 

 of moderate size. Head rather pointed. Mouth moderate, formed as 

 in Argyrosomus, the shortish maxillary not extending quite to middle of 

 eye; its outline below broadly convex, lower jaw projecting. Teeth 

 minute, on jaws, vomer, palatines, pterygoids and tongue. Ventrals 

 inserted directly under middle of dorsal, midway between eye and base 

 of caudal. Branchiostegals G-7. IS'orth Pacific, {u-6, below; pJao^, 

 middle; in allusion to the i)osition of the ventrals.) 



4§2. H. prctiosiis (Grd.) Gin.— Surf Smelt. 



Light olivaceous; a silvery band along the lateral line. Ej^e as long 

 as snout, 4J in head. Fins low, the longest dorsal ray 8 in length, 

 without caudal; pectorals scarcely reaching half way to ventrals, 7 



