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270 liriJ.KTiN :ii, r:siTi:i» statks national mikskum. 



(>i('j:(»ii tiii<) < ';ilir«)iiiiii. I tliiiik Jl. i>i(iiis is (In/ .yoiiiij'- of (his Conn. To 

 tiK' (.vpical /;. <i>liinihi<)ts!s bi'loii};' Nos. .{liS, li.J77, 'jr>7M, I!)?."), 1>!)5(), 1(»!»l'0, 

 aiKl llaK;. To (lie iiitcriiu'diiKe (.vpo Ik-Ioiij,' %.{(», .Sl»!).5, 11500, llOl'l', 

 and IIJL'.'.. To (lie li;iloi)liilns typr Miii.v lu' relonctl Nos. liOS!, OKm, 

 i I.l.!."*, llOlM, Mild llOl'L'. No. Ilw05 is in(i'inu'dia(u in (he (biin oC (he. 

 paio{oids,iind (he \\t'l> is dci'ply cxnivaU'd, bnt tho (iw |ior(ion of (he 

 tot's arc widely margini-d. A (•oiiipl('(c st'iii's of (lu' lornis oj' (he paro- 

 toid may Ik* traced, iiejiinniii.y \\i(li (Ini shoit (ype of lialophiliis, No. 

 LTjSI, (lii(Hi;,di I.'idOS, lloO."), Il."»:i.~», to IIDU J of the elon,ya(e f'oini. 



In Nos. I!»7"» and WM tliereaic distinet (races of superciliaiy cranial 

 rid^ics. 'I'liey aic pcileedy strai^yht, and (here is no indicadon of post- 

 (>rbi(al ri l^n-s. There are lour >iH'ciniens inuh-r 11>7.">, and (hey are Crtnn 

 Chilowynck, Wash. Tcr. The locality of the «)ther .-ipeciinien is nnfordi- 

 iia(cly unknown, The same character is seen in the type of />'. micro- 

 K<-iii)liiis, according,' to my description, which is{,'iven below. The speci- 

 men is nnfortnnately inaccessible to me at present. 



" Ipper smiace ul' head nearly plane upon its middle rc,uion; orbits 

 bordered by a low and ronnded o(V ridjie; its skin beinji' (hin and ad- 

 heriuii (o theskall. l'aro(oid.s well devidoped and snbreiiiform. lOyes 

 and (ympanum radier larjje.^ Ton«,Mie elon^^ated, broadest posterioily. 

 I'pper Jaw emar^iiiiated. Tw;; larjjje carpal callosides. A miMnbra- 

 lions fold at (he inner lower edj;e of (he tarsus. Toes palinaied; (wo 

 nietataisal tubercles, i'alms and S(»les (toarsely granular. I'pper sur- 

 face of body exhibit iii<>' numerous glandular tuberchs; lar;;'e pus(ular 

 swelliii;;- upon (he thi^^hs. Color unilorndy dark green." 



I alsiiaild a copy of my description of the yoiinj;, under tlii' nanu' of 

 Jl. pictiis, as it embraces some peculiar cluiiacters, probably <lue. (o im- 

 maturity : 



'• I'almar and solar tuoeicles well developed, the hnj^er or inner one 

 of the latter not bearing a cutlini; edj;e. Cranium plane al)ove : the 

 mn/./le prodiiceil, rather narrowed, and vertically (riincate. Mt iiihnininn 

 t;/iiiji<iiii very small, externally invisible; osda pharyiijica exceedingly 

 miniile. Ton;;iie lar^^e, o'val, extensively free. I'arotoids superior, 

 broadly oval in foiin, I'pper surfaces coveii'd with lar;^(' (ubercles; 

 inferior siirlaces areolate. Limbs stout, especially (he tarsus, which 

 liears a lonj^itudiiial fold. The heel reaches to the middle of the par- 

 otoid ;ilaiid, and (he toes aie only webbed at the Itase." The palmar 

 and solar tiiltercles are yellow, and the war(s of the body (ipped widi 

 red ; si/e small. 



There is a dire('( relation be( ween (lieclima(ic coiididoiisof the rej^ions 

 and the tonus of (Ins spe(;ies which inhabit them. It is well known that 

 (iuMU'jii'ce oi humidity of the I'acilic rej;ion increases rapidly as we pass 

 fi'om south to north. Tiie soiidiern pari of (h(> region inliabi(ed by 



(his (oati is (| ' id, and the oppoit4iniiy Ibi' ai|iialic life must be 



limited. Accoro.. ..\ the natatory web of the himler foot is reduced. 

 In the specimens trom the rainy north (he ..ebis much larger and the 

 colors are, darker. This increa.se of pigmeiit is coiiliruatory of .1. A. 



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