No.iinfl. FKATIII'lU-TUAcrs OF (!I,'()I SF J\l> (,) I AJ /.—('LAliK. 647 



sidcH ol' the lu'ck tliciii iirc iisiiiilly ix'-ciiliiir lincts or spiicos wliicli iiinko 

 good jieiicric- cliiirac^tcrs. 'IMie nunibiU' oC io(^tri<^os is very Nariublc, 

 some jjciieiii liiiviiii>" ii [xm Irctly c.oiistiuit miiiiln'r, wliilc otlitirs aro vory 

 iiTe;;iiIiir. I'.siuilly tlicro nut H! or IS, but ol'tcii tlicic nrc '20, and 

 soiiKUiine.s U-. In llic winy- the. nnrnbor ol" priniMi'ics (10) iiiid iilnla 

 Icallicrs (1) is as in the (jniiils, Imt Mu^rc is no chiwon Mic thiiinh. Tlio 

 sccondiirics, never l»^ss than Hi, nniy b(^ as many ;is 'Jl. 'I'iie proportion 

 of tiie priiMiiries dillers IVoin Mint of the (| nails, thonyli th<^ exjict 

 arranjicnielit is not constanl. 'I'he winy' is pointed by t\tosi.ilh, stniilli, 

 and cif/litli primaries, whi<'-li are about the same U^nyth; the _///'//< is 

 much shorter than the ehjiilli and about e<pial to the niiitli ; Iha fourth 

 about e(iuals th(^ /r«/A, wiiieh is yonerally mueh longer than the ihivtL 

 Of the !.'{ species of yrouse natiNc in this eonntiy I hav<' (examined 10. 

 They fall naturally into se\en ycnera, charaxjleri/ed i)t(uyloj>rai)hically 

 in the following key: 



ANAI.V'I I<;AI. Kiev TO (ilCNKIJA. 



I. SidoH of \\M'\\ witiiiinl; pcciiliiir triicts or oxtrjuirdiiiMiy iiplcriji. 



1. I<'c<'1; (catlicrcil only to liiiHooC to(iH in (Voiit;. Doisiii aptoiiiim Hinall. I'\'iiioriil 



tiaits innportioiiatdly larj^o. SocoiidarioH iiHiiiiiiy IS. Nimilior of r«i<tii<'C,n 

 vcjy iiicoiiHtiiiit, l()-li2 heii(hn(jnpuH. 



2. I'oct, Iriiilmrod only to ltas(( of town in front. DoiHiil iipltuiiiin lony. i'NMnoral 



ti.icts proportionatrly Hinall. Scicoiidaries nsnally 17. NnnilM r of i'('(tii<!cs 



Ki ('(l)l(IC('. 



',\. \'\-{?\. (oathorcd ahnoHt to claws in front. DorHiil apttd'inni lon^. Ftsnioral 

 triicrts pictportionatoly Hnnill. Sfcondarion 18 or 1!». Number <d" i(ictric<'M 



Hi Ldi/oinin. 



II. Kidr8 of n«!(k with Hpocial tracts or oxtraordinary aptcria. 



4. I'lct only foiiMntred a v(ii'y littlo way down on tlio taiHiis in front. Spocijil 

 n«M"k tracts on tins lattsral liraniduw of tlio Imvir corviiial tract. Iii^'tricos IS 



Hoiiiina. 



r». I'N'dfc fcatlicrrd to baso of toes. Special nocsk tracts on sides of i(pj)err,fV\ivh\ 

 tiact. KcctriccH 18 'I'j)iiij)iihiicIiuh. 



(I. l''()ct Jcathcrcd to baso of toes. No spocial tiiu^ts on n«)(d<, but a, special apte- 

 rinni on oach sido. ixoc^trices IS, of which tiic niiddlo i>air aio nnich tlio 

 lonffcst I'rdiocntcH. 



7. l'"oct feathered to Itaso of toes. Lattsral neck spaces jilniost wantinjj and 

 replaced on oach side by a lai';;(( elliptical apleiiiini, forniinj^ the air sac. 

 Kectrices lG-20 Cvniiucercim. 



DENDRAGAPUS. 

 (I'lale .M.VIll.) 



Material examined: Six sjjecimcnH of I>. oliHoiiriis, four fiom Kadsville, Wyominj"-, 

 the >fift of Dr. Josurnn, and two fnnn l'r<d". (J. S. Thomjtson, Houlder, (Colo- 

 rado, an<l on(( of D.o.Jiilif/iuoxiiH fvom Hrilish (!olnmbi;i, from Mr. .fohn l''iiu- 

 nin. In addition, fonrteen skins of />. oliHciiriiH, twenty of />. o. J'iili(/iiioHiis, 

 and nine of I), o. richardHoiii, chielly from the I'. S. National Mnsciini, liav(i 

 b<(en examined in regard to the nnmlier of roctri(!es. 



Tlie j?eneral pterylosis of this oemis is so clearly shown in the plate 

 that no I'nrlliei' explanation is needed. TIk^ secondaries seem to be iini 



