294 



NORTH AMi:i;iCAX innm. 



Afoxioo. Thcniuli we know of im sjn'ciuicns liavini: Ihmmi )»rocMro(l on tnis 

 'side ot" the linuinlarv line, their (Kciinence is (juilc i»inl»iil»k'. Lieutenant 

 Cnueli met with this sjieiies near Mnnteiev, Mexico, and IVoni thence west 

 to Panas. He deseiilics it as hcin'j; uie-Miious and eminently Jav-like 

 in its liahits. Thev a'.e very noisy an<l vocitei'oiis in their outcries, and 

 three or t'our of them sutiice to keep a whole lorcst i!i an uproar. Near 

 Guyjqnno a lar^e snak" ((iior;nii ohso/rffi] was .seen pursued hy three or tour 

 of this species. The rejuile was making; every efl'ort to esea|)e from their com- 

 hined attacks, and would, no doulit, have heen killed hy them, had they not 

 heen interfered with. The eause of so much animosity ai^ainst the snake 

 was explained when, on openinu" its stomach, three youn^^ of this species, 

 about two thirds i^rown, were found. 



In the Department of \'era t 'ruz, Sumichrast for.iul what he calls 0. 

 ultraniui'iiui in company with Ciitiiiurti cnrniititu and (\ii<iiU)riti(t n<iin(, "nt/i- 

 fornica'' (SifmicJinafi), and xonlidn, occurring; in the al}>ine rei,don, and 

 with the three first named restricted to that locality. The limit of their 

 extension is about that of the aljiine region, that is, from an (devation of 

 aliout 4,.'jU0 feet to the height of l(i,30(i feet. The fiunlida is also found on 

 the plateau. 



Genus XANTHOURA, Bonap. 



X<(iithoura, Box.\pakte, Coiis}). Av. 1S50. (TyiK', ** Corvtis pcruvimius, Gm.") 



Char. Head witliont ortst. Throat l)lai-k. Lateral tail-foathors lirJLrlit yellow. Bill 

 very stout, rather higher than l)roa(l ; riilmen curved from the ba.<e. ^ Nostrils rather small, 



Xanthmirn hiontnxn. 



oval, ronoealed by a nasal tuft varviiifr in Icnfrth with species. Tail loncrcr than the 

 winirs : irraduated. The winifs concave, rounded ; the fsecondaries nearly as long as the 

 primaries. Legs very stout ; hind claw about half the total length of the toe. 



The u:enus Xonthnura i.s composed of three so-calle<l species, of different 

 geoi»Taphical distribution, and exhibits a ]>r(\L;ressiye change from one to 

 the other, \vith yariatiou of latitude that enforces assent to the hypothesis 



