320 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. 



and Kamtschatka, generally abundant northward, descending to the 



sea, where it reaches a weight of about 12 pounds. 



(Sulnut Jiinliini Wiilhaiiin Art.-di. Pise. 1711-J, ("id: Sahno callaria* Pallas Zno^r. KO>MI- 

 Asiat. iii. :;."):;. l~ll-:;i: x<ilm<> citlltiriitK (Jiinther, vi. 14:?: Salmo spwstabUia Girsad, True. 

 Aead. Nat. Sri. 1'hila. l-<ii, -Jl^: Sulmo jmrki -i Snckley, Ann. Lye. Nat. Hist. N. V. 1-r.l. 

 309: N.I///H. ,;iiniil>,'lli Snckley, Ann. Lye. Nat. Hist. N. V. 1861,313: >W///. .p.ni.ii. lonlii, 

 ati'l i;imi>f>rlHi ( Mint her, vi, 1'Jl. 1 K 1 !'.: Xalrcliiiix xjifrinhiHn .Ionian, Proc. U. S. Nat. 

 Mns. i, ?'.i, 1-7- : Salmo tndcs Cope, Proc. Amor. Phil. Soc. Pliila. ls?:5: Sulnui bnirdii 

 Snckley, Ann. L.M-. Nai. Hi.st. N. Y. 1^:11, :'>it:i: Sulmo bainlii (.iiinthcr, vi, 1^1; Salrc- 

 linun buiidi Jordan, Proc. I". S. Nat. Mns. i, 8'2.) 



aa. Ilyoid ti-i-th wanting. 



511. S. foiitiiiulis (Mitch.) Gill & Jor. Brook Trout; Spcckh-d Trout. 



LJody oblong or elongate, moderately compressed, not much elevated. 

 Head large, but not very long, the snout bluntish, the interorbital space 

 rather broad. Mouth large, the maxillary reaching more or less beyond 

 the eye. Eye large, usually somewhat above the line of the axis of the 

 body. Caudal tin slightly lunate in the adult, foiked in the young; 

 adipose fin small; pectoral and ventral fins not especially elongate. 

 Red spots on the sides, rather smaller than the. pupil; back mostly 

 without spots, more or less barred or mottled with dark olive or black; 

 dorsal and caudal fins mottled or barred with darker: lower fins dusky, 

 with a pule, usually orange band anteriorly, followed by a darker one; 

 belly in the males often more or less red; sea-run individuals (S.canmlcn- 

 v/.s- Smith, the Canadian "Salmon Trout") are often nearly plain bright 

 silvery; many local varieties distinguished by shades of color also occur. 

 Head \.\: depth 44. D. 10; A. 0; scales .-JT-L'-'iO-IJO; gill-rakers about 

 (5-fll. L. IS inches or less. The best known of our trout, abounding 

 in all clear, cold streams from "Pennsylvania, to Dakota and northward 

 to tin- A relic Circle, southward in the Alleghanies to the headwaters of 

 the Savannah, Chattahooehee, Catawba, and French I.road. 



- -',/, Jnntiimlix Mitdi. Trans. Lit. A i'liil. Boo. X. Y. i, i:i.'.: Salmo fnnthnilh C.Vm- 

 tlicr, vi, 1 .">.', anil nf nearly all authors : Sulino cii>Hiilfiif<in' 1 lamilton Smit h, in ( iritlith's 

 Cuvirr. \. 171. l-.'.l < 'an.-tilian 'Salmon Trout"): Sulmo inuniiciilalttx* 11. I,'. Slmvi-, 



!. .lour,,. Nat. Ilisl. \i. 364, 1-'." Canailian "Salmon Trmit"): //<) iiniii,irni,itii8 

 (liiiitlicr, vi. !.'.": S,il,n,> hn<L>iii<;i* Sncklcy. Ann. Lye. Nat. HM. N. Y. !*<>!, :5]ii : 

 Suliiin lui'l <<ini< ii-i (iiinthcr, vi, 1">H; .lorilan, Pi-oc. V. S. Nat. Mus. i, 81:1 Xalixv 

 I.'ich. l''rankliii's .lonrn. 7(1 1.) 



.. S. hood! (\!\<-\i.) (Jill &. Jor. 



Kody rather elongat*-. .Maxillary rather strong, straight, extending 

 to or beyond hind margin of eye. IVeopcrcle very short, with a very 

 short lower limb. Pectoral not reaching half way to ventral; adipose 



" Tin- nominal species <-tinn<l< nxix and inniHt'-itltitux are liased on sea-run specimens of 

 larger si /e ; the M> called " Stimuli Troul". 



