u 



§ 



Tin; !!AriiA(;iiiA or north amkrica. 



ChiHsitliMliiiii, 



A . Mlliiuiiitl mil nsHilii-il . . . 



A A. Klllllliiiil (issilli'il illliivi': 

 I. A riiiiitii{i:ii ii'tal Inn 

 liiniiUr — 

 (1. I'rcfioiiliils iiiimnv. 



nit. I'l'i'li'iiiilals Willi' . . . . 

 II. No rniiliiiii'lli' : sKiii 



riTI': lUM'MIMlllsis— 

 (1. I't'l'I'lDlltlllM lllll'IOW. . 



na. I'iI'IViiIiImIs Willi' . .. 



111. Nil riiiiliinrlli' ; sKiii 

 I'li'r; c.Mi.NlimiH - 

 a. I'lcI'miilMlH li.mnvv. . 



liiil'iiiiiiUi'. Sra|)liiii|)iilii'. 



Myoliatfii- 

 clius. 



I'!|iiilali'a 



I'llll'll so 



\\t\fn s|i. . . . 



1 1'l'llaiilirviii 

 < !■ ... .. .. ..I. 



nri. I'll I'liililal.'* \\ iiii' . . 

 nil. Nil liiiitaiii III-: iiil<'i:ii 



ini'iit ImviiIm'iI In '.t' ra ii it |i li 



I'Mistiisis. S ryiii'. 



mil. .SKiill I xiimIiimi'iI. ill 



vnUini.' iiili'i;!! 



Mil III : |rni|iiiial 



liiMsa iciiiri'il 



mill. .\s lail. lint nii'iiiliia 



iiiiiM t\iii|>aiii III- 



( li.M'il lii'liiiiil . . (tla.ipis . .. 



Diiliinis 

 S|ir;i 



l>:jl 



(".VHtl^natl.l. j,^,i,,„, ,.„„i,,,, 



Kii.siiiilni.s I Tliiiriipii .... Uaniilii. 



liiii liiiriicii'. I|\ |Hiliiiati . 



ll'H. 



(f '\rliiiliaii|.| 



\ pliiiH. II.\la (sp.) . 



fllx iMMilia .1 



Kliwiii, I'tr . I Uaiia (oxy- 



rliyni'lial. 



Ilylmlcs, I'tf. Si'vtiipi.s Itanii (Inxa- 



ilai^tvla). 



Srapliiiipiis 1 

 I'll.ilial.y ' 



CllllliprH 



Onli'occplia 

 Ills. 



riiiarliips . . Trai liMCpli- Pnlypi'ilati's. 



. aliis. 



Calypliiicpli 

 alii.s. 



4 



% 





l"'i;;iii('.s «»r (Iicsc jiiid iiilfniH'tllntc ty]»i'.s of ci'ijiii;! will 1m> roiiiid in 

 l'liit»'S (is tn 7.""). 



The adiiptivc ic-^iilt iitlniiUMl In these eliaii;;('.s in the ciaiiiiii Dssilieii- 

 tioii iii'e two. Kolli ill hiirrowiii^ in the eaith iinii in incsetitin;:' n <h-- 

 I'ensi' a;.;ain.>it eiit'iiiie.<, llie litp of the head i.s presented to tiie I'e.sistin;;' 

 oltjeet. On Iti'in.u atacked, a S.ilientian Matrachian always depi'esse.*^ 

 tlu^ nin/./.le and presents the top oC the iit-ad to the em-niy. Tiie typ«'s 

 with well o.s.silird ciaiiia have a ;,M('at advantage over tho.se in whi(di 

 the front is nietnlManoii.s or eartila^inons, t'speeially in tiie ea.se ol' at- 

 tack I'roin venomous snakes, stin^iny' in.s«M'ls, etc;. There is, liowevei', 

 no deliiiite distiihntion for the I'espeetive types, t'ither in tinu' or space, 

 e.Kce|>t that the jjtMiera wifli nnossiCied elhinoid all belonj; to the. South- 

 ern lleniisj»here. Also, types with nnossili(>d froiito|)arletal hones pre- 

 dominate in the .\nstr,ilian and Neotropical realms, an^ nnkiiown in 

 tht^ I'ithiopiaii, and raie in the I'ah'otiopical. Tyjx's with exosio.scd 

 frontopariclals chicily altonnd in the. Neotropical realm, and (xunir 

 in the Ncarctic and ralaarctic. I'alcontolo^^icaily, lioth e.xostosed 

 (Latonia) and memhraiions frontoparietals (.Mytes) a|)pear to<;'etiier in 

 the Miocene lirown I'oal of Uonn, in h'hine-l'russia. 



As re;;anls tin' distriltntion of Salienlia in North America, the follow- 

 inji" general remarks may l»e nnide. The eastern district, with its com- 

 paratively linmid climate and almndant water <!ouises, is the Innne of 

 the jjenns Ifana. For similar climatic reasons the middle and northern 

 parts of the Pacitic rejiion have several species of Raiia. Tiio eastern 

 re;;ion,th(^ land of forests, posses.ses nearly all the species of Ilyla. The 

 Tacific coast lias hiit one, a fact due, jierliaps, to its long dry .season 



1' * 



li 



:iti1 



\\V: 





