294 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY — IV. 
Var. sg>e<'trii:i3 Coin'. — IViUoit SmcU. 
trilender. Head short, with very large eye, and short mouth and max* 
illary. l\Iaxillary not extending beyond middle of pni)!!. Eye 3 in head. 
Head -fl; depth 8^^. 1). 10; A. lo; J^at. 1. 00. L. transv. 10. Small. 
Wilton Pond, Kennebec County, Blaine; land-locked in fresh water. 
(Cope.) 
{(Jsmcniii spectrum Copo, Proc. Aiiier. Phil. Soc. Pliila. 1870, 490.) 
Var. Cope . — Cobcssiconiic Smelt. 
Stouter. k]ye smaller. ^Maxillary reaching posterior margin of pupil. 
Eye 41 ill head. Head ; deiith 7. J^at. 1. 08. L. transv. 10. Laml- 
locked in Cobessicontic Lake, Kennebec County, 'Maine. (Cope.) 
((hmerus ahbolti Cope, Proc. Amer. Phil. Soc. Phila. 1870, 490.) 
•INI. <>. doiilex Steiiulachner. 
Dark brown above; sides silvery or golden; head and body with dark 
jioints. l\ve two-thirds length of snout. Teeth as in 0. cperlanus and 
O. mordax; maxillary reaching po.sterior margin of eye, its length live 
times in distance from tip of lower jaw to dorsal. Height of dorsal half 
length of head; height of anal two-sevenths. Head!; depth 51. 1). 10; 
A. 13; V. 8; Lat. 1. 00; L. transv. 10. Port Clarence, Alaska, to north- 
ern China. (Bean, MSS.) 
(SteiudachQer, Sitzungsb. Kais. Akad. Wiss. IVieu, Ixi, 1870, 429.) 
113.— 5IYP0.1IESUS Gill. 
Sue/ Smelts. 
(Gill, Proc. Acad. Nat. Sci. Phila. 1862, 109; type Argentina pretiosa Grd.) 
Body rather elongate, moderately compressed, covered with thin scales 
of moderate size. Head rather pointed. Mouth moderate, formed as 
in Arejyrosomus, the shortish maxillary not extending quite to middle of 
eye; its outline below broadly convex, lower jaw projecting. Teeth 
minute, on jaws, vomer, i)alatines, pterygoids and tongue. Ventrals 
inserted directly under middle of dorsal, midway between eye and base 
of caudal. Branchiostegals 0-7. North Pacilic. (b~6, below; niao^, 
middle; in allusion to the position of the ventrals.) 
■JN2. II. i>roliosii*i (Grd.) Gill . — Surf Smelt. , 
Liglit olivaceous; a silvery band along the lateral line. Eye as long 
as snout, 4i in head. Pins low, the longest dorsal ray 8 in length, 
without caudal; jicctorals scarcely reaching half way to ventrals, 7 
