Tin; IIATKACIIIA (»r NoKTII amkuioa. 



51 



tcrs «lis 



solve an 

 ,11 not no 

 •80 t'liai- 

 till I'liiu- 

 thi' i>nla- 

 oMipan'tl 

 iilnals «)!' 

 trillion ••! 

 \ uniroiin 



u'lininbiT 

 !.•; (2)tlu- 



iltt'S I'lJillt 



spi'cii's ol' 

 n;;- specit's 

 , iucveast'tl 

 iblislii'd in 

 (iR's Uein;,' 

 iiin, seconil 

 iiicIiuliiiK a 

 iiitti!il,oni' 

 )trartit»n ot 

 ipsus. l"'oJ' 

 stilution is 

 I hat of till- 

 niislH'd its 

 hu late l>i. 



liiiivs. t'lici 

 mill 1«'»"'" 



ill iiiin> mm li 

 (Is: tail hIi'iH, 

 .A. tKlpuidiiiiii 



iiriiiiis of iiuro'i 

 ic-foiirlli I'Miulli 



JIV (MOSS-tlillllN- 



,1. oiitiniiii- 



i 



i 



I 



'reel ii iiM III (he last; wiiltli of li<-a<l in small N|ii'(!iiiifim, ll.Ti to ^roiii ; in 

 ailiillM, I.Ti limes; a sli'oii;r iloisal ;;i'oovi' aail Ioii;;<m' tail ; lilackisli 

 iiUovi', Willi a M'l'ir.s of loiiiid vi'llow mjioIh on t'acli side ol' tlii' liack. 



.1. iiiniclultnii. 



Mnliiiii series of teetli convex, advam'in^' lievoml posteiior mar;;in miles ; 



will 111 of head miieli less tliaii one-Ion il li ltMi<;tli lo irroin ; tail slioil, 



no dorsal groove; lead-colon-d, willi an iiiferitn' lateral and usually 



supi rior serii's ofsmull irrej;iilar yellowish ;;ray spots...!, coimiivniniii. 



,i (Two dislinel ]ilantai' Inhereles; 



.Median series of teeth Ntrai<;lil, nearly divided; external iiares iniicli 

 eloser tci^clher than inlenial ; width of head more than one-foiirlii 

 leii;;th lo j^roin ; miiz/.le very short ; tail iniieli i;iimi»reMsud ; lilack- 

 isli ahovt', with laiy;o, irrei;iilar, yellow spots, eonlliieiit on Ni<tes ; lie- 

 low yellow A. hkolitr. 



I III N'omerinc si-ries four. 



Teeth in four series, which I'orin an ohiiise an^^le directed forwards; width 



of head, :t.l! limes in length to nniin; length from m(i//.Ie lo axilla 



eijual length from axilla to <;roin ; tail nearly as long as head and 



iioily ; dark Inowii, with a daiU hrowii hand on side ....(. rui>miiiim. 



r. ('o,-.lal niooves, twelve; 



i( l,.arH;erspe<'ies, with iwo distinct plantar, tuborclos and mucous poicson the 



side of the mil//.le. 

 ( \(p I'aiilhiis nistialis; tail sliortei' than head iiikI body ; chin not pr(ijeclin}f. 



N'omeropalal ine tooth series with the median portion pre.sentin;f a very 

 tdilnse allele fiirwards, rarely straij;ht, somctiincs with the lateral 

 ]ioi'lioiis separated; hrown, with larj;e yellow sjiots of larj;er or 

 smaller si/e I, (iijriiiiiiii. 



Mn/./le Iiroad olitnse ; dark brown, with vertical yellow sjiots on sides; 

 teeth in four distinct series, in a nearly transverse line. 



./. Irixriijiliiiii. 

 ;1,< Canthns rostralis distinct ; chin jirojeeting. 



I';xternal nares nearer lojfct her than internal ; mn/.zhM)l)tu.se ; headsmall, 

 width") times to };roin ; front convex; tail longer than head and 

 body; voineiine teeth in one series, si iglitly con v«'X forwards; yel- 

 low, Willi irregular brown baiiils above /. j-iphiai. 



atcSmaller species ; the mncons pores not extending beyond the orbits; teeth 

 in three series; no, or one indistimtt jilaiitar tubercles. 



External and internal nares eiiiiidistant ; vomerine series nearly trans- 

 verse; width of heail, 4..") to (i times in length to groin; length of 

 oyo, 1.7r> to 'J.,') limes in width lietween anttirior canthus of same ; 

 lead colored to brown or black, with or without jialu or distinct 

 lateral spots A. jiffcrnoiiianiim. 



Nares c(|iiidistant ; width of head, •> times to groin ; niiizzlt) contracted ; 

 length of eye, entering l.(!(i times in width btstween canthus of same, 

 once to nostril; median dental smies angulated forwards; digits 

 long; blown mlead colored, usually a broad gray band on vertebral 

 line of tail and body expanding on occiput : sides, dark reddish-brown. 



-/. mavvoilactijlum. 



.Muzzle wide; width of head entining h^igtli to groin I times; tail long 

 as head and body to groi:> ; digits short ; black, upper surfaces bright 

 yellow A.t'inxnnthum. 



These .si>eeies are distributed as iullows: One, the A. persimilc trray, 

 is said to be tin inhabitant of the mountain regions of Siain. Tlie others 

 are all North American. One sjtecics only, the A. (iyrinum, c-\teuds 



