KXI»[.»>KATI<»NS IN WI'.sTKHV <ANAI>A, KTC 



115 



II llllisr It 



I anil il>i{ 



II ill •■I 



', ; I with ' 



' r:i.-«', ." I 

 tirtll •-'. ■■ 



IlK'tll. 

 tlir Hprciii, 

 IS «>i|lli(li>; 

 to lU'ill'h 

 It'llt Mil I.I 

 lllll\ jMl^ll 



'I'lio Bprciiii 

 liter ami i' 



S N|>frili|i||. 



KlmI. 



l(>lll'll. 



I'||I|M'|I. 



fvlileiit. 



'rinpi'il. 



I*. 



I'lopeil. 



n). 



, vary iVdin 

 )iir, 17. U I'' 



S Wl'll (Iflilll 



variation in 

 ,'s: Olio ■wiili 

 I, ; two with 

 I, a))|iroa('inii 

 rlicr pale in ■ 

 iioro propi'il 

 Till' v*'iilr!il 

 mils. 

 our have In 



M>lllltill}r :|ll 



h.' Kcd K'iv 

 iirj-est N|)i( I 

 ()1. Tliis -I 

 lediciiit' Hilt 



19. Blodon tergiAUH l.c Sueur. \Viiiiii|i)"^, Krainlon. 



M)> OoreKoiuin williamsoiil liiranl. I'liis xiinieH is i'\tri>iiiely aliiiiulanr in tlir MirtHoiiri liivr nt, 

 ( i^i^. It Wat a Nil I a l^ I'll at lilalm I 'alls in tlir Mia l\i' lti\ i-r, at I. a i iraii<l<> in tlir lira nil l>i>iiilt>; 

 at iiolilrii, lilr\ rUt'ikr. anil rinatlllii in tlir ( iilnniliia li'ivrr; at (alilwi-ll in llir Hoixr Kivrr: 

 ul ( iil^aiv anil It.iiil) in llir How liivn, whrrr it i.s rallril ^riiN liuK, anil at Siriiinnu.s in 

 ShuNhwiip l.akf. 'I'ln'ri- are niiiiutr (liirnnnrH liriwrrii ilii> h|m>( inHuiii taken at dilVerrut 

 |il,iri -, lint I am niial'le ti> iliKtinunisli s|irritii' iliarartrrM tn triijiralr tlieni. 



\X, Coregouiiu coulteri l'-i.;eiiniann iV l".inriiin:iiiii. Many spnini •iin, tin- lari;rst nira.siiriiiL; liCi nini., 

 t'roin th«i Kii'kiiiK llorNe, itt Fiilil, llritiNli ( 'oliiniliia: one Mpecinien from (ioMni. Head, li-'i; 

 depth. 4A-."»i; I>. 1(U-1U; A. IL'-IH; .Miilen 7. ti(M!:t, 7 (to ventralsi. Ii.rin ratln r heavy, 

 litt If elevati d tile cnout hroild, very hlnnt and diciirvod ; 'ireateMt de|itli nt head ec|iials its 

 length I1-..H liie oprrile. Mmith low, the >miiit hiit little projeitinj;. maxillary reaeliint; eyo 

 ill lari'i'ti Npoeinien. I'liither in the >malli'i' onrH. liye ri|nals .snniit. I in Inad. Supplemental 

 bone a i-reseeiit. Iiill-rakers ni'irh a-, in iiilliiniiiioiii. liorHaNiind iiiial nliorler and higher 

 tliaii in ivilliiiiiiHoiii. Seiili'H lari,'!'. dull ,^il\eiy ; the spots id' tlie youii:,' not Hit ronspieuoiiH an 

 in lliosr lit witliiiiimini. Length nt lainrst Hpeeiineii to iii'i>{in of dorsal, (ix mm. i I'late tl.) 



2. Oncorhyuchua tsciiawytscha Walhaiim. indden. II s|>iM'iiiii'iiM, the hir^e.st ll'i) mm. It'evef- 



Htoke.a lari^e nninliii nt' spi linnns, the lai^est I'-'H iniii. I. a (iranile, I speiimeii. Mission, the 

 ■ liir>;e»t ICi mm. Kamlno|>H, I KpeeiiiHii. 



3. Salmo niykisH W'allianm. ('al;;ar\. ISaiill, <ii illln Lake, sieamoiis, Kamlonps. Idaho I'alls. iiid 



( r.iii;.' The s)iriiniiiis I'lnia (aluary and ManlV resi'inlde \eiy (dnsely speeimeiis in tlm 

 eollei'tions id' the Indiana InivrisitN t'iniii the K'lo (irimdo at l>el Norte, Colorado, 'n ope of 

 the Kin Cr.'inde spreimrll.s I enillit \!*\ rows nt' s. ales ; |)r. .Ionian eoiinted l.'i.'i In Did in those 

 be ex.imined. In one ot' the Cali^arv speiiini ns I lind I. "id rows. In the shape ot' the head and 

 in eo'.or the spt'iimeiis front Cal'^ary and llanlV are almoHt exaet reprodiietions of thu ll'u> 

 (iraiide spei'iniriis. I tlierefort) see no reason why the t wn hIiouIiI ^founder ditleiviit naiiieH. 

 The ijuestioii of the niimlier of speeies of trout doiis not appear settled as yet, nor is it 

 jirnlialde that it will lie until all the trout are eaiinht. .spreimms t'rom Kamlnnp.s ditl'er Iroin 

 thn-r from ( alu'aiy in ha vinj; slii;lit!.\ larger spots. I'hose I'lom (Jriiliii Lake have still lai'ner 

 and nmre niinieions spots. 



4. Thynmllus signifer oiitariensis \ alrnriennes. A siiiLjle sprriiiiri:, u'li; mm. loni;: I'. HI ; A. 12; 



Hialrs, !i|. ( 'rai^;, Montana. Tlii.s spnimeii dirii'is iVom the sperinieiis nhtaimd by .Inrdaii 

 in the Madisnii l>i\er and at llnrsrthiid' Sprini;s, in the lar;;er scales, lieini; in this respeet 

 idml ii-al w itii 1 he typieal xi'/Hz/i c, and i . liavini,' the Idaidi spots extend iinite to lielow the .soft 

 dois.il till, fheroloinl tile dorsal is as de.scrilied liy .Ionian. 



5. Salveliiius iianiaycush (\\'all(aiiiii>. <'al^t;ir.\ , li.iiiH', hevils Lake, (iolden, and K'evtdstoke. A 



Hpecie.s .i|' Siihi-lhiiis. |irnl);ili|y tn 1>« ret'eried to this speeies, reaehes a larjje si/e, a meter and 

 more ;n Dm ils Lake, in the (anadiaii K'neky .Mountains I'ark. A |ili(dograjdi of om' of these 

 lar.uer imliv idnai.s shows it to he every wlirir juofiiscly spotted on lieaii, .siiles. and haek. 

 The spots are sii,4litly lar;;er on low er paits ol' .sides. Tliost) nf the head do not dilier frniii 

 tho-'ie of the lindy. The dnrsal, caudal, and to some extent the anal. vnitralH. and pectorals, 

 are also prnlnscly spottiMl. The largest Kpecimen olitailied im'a.siires alxnit liri mm. Tli« 

 Bpots are much less numerous than in the photo<>;ra]ili and thoso of the head show a tendency 

 to I'liiti'. Icavini;' a dark reticalatinn as a hack^^ionnd. Itors.il. .snt't dorsal, and caudal well 

 Bpniti'd: anal and iiiii'i' surfaces of vrntra Is and pectnrals alsn spntted. The anal mai;.;iiied 

 in finiit and ahnvc with while. In this iaiircr specimen the teeth of shaft of vomer are 

 well developed. 



Ill ilic liow. into which llevils Lake lia.s an nutlet, and in the LIhnw there arc numermiH 

 small trnu! w hich arc considered dist iiict from those in the lake The lariiest of those olitailied 

 at llautV nicasnreil 'M>{) mm. in leiii^th. the rest from (^aljjary aro all smaller. In this Iar;{est 

 Bpecimeii anil in all the smaller ones no teeth arc developed on the shaft of the vomer. In » 

 Bpeciiinn alioiit l!(Ml mm. lonj;. tVoiii Lake .Nlichijian, the shaft of the vomer has well-developed 

 teeth. 'I'liis would lend color to the poixilar helief th.at those of the river are dili'erent 

 from those of the hike. The river !«pecinien8 have smaller and mm h fewer spots, the dor.sals 

 and caudal and inner surface of jiectorals are dusky without iudic.itions nf sjiots; there are 

 few 01 no spots on the lie.id. .V sjiecimeii 1(1.'> mm. loni; has these eharaiters still more eiu|)ha- 



' liull. I". S. Fish (,'ciiii., IX. 50. |)1. vni, lii;. 7. 



