TlIK UATRACIIIA OF NOKTII AMKKICA. 



1)7 



V i 



to tho. A. mairiHlactiflnin. The width of tlie head, sa.ys IVters, enters 

 the length to the ^M'oiii 4;r; times. The <h)rsal l)aii(l is ocliraceou.s, whilo 

 in t.vi>ical .4. mavrodavlylmn it is j^laiicoiis or mauve color. 



Amhlj/ntoma m(UriHUtclii!iim IJiiird. 

 KKSKKVK SKKlliS. 



Caliilii^iu' (^1). Ill' 

 iiiiiiilii'r. s|H'('. 



4054 

 4012 



flS7S 

 HKOH 



ijriui 



IUUh 



r«'.'48 



r.';>H7 

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XUIiti 



1 4V.H 

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L()i;llil V. 



I'lijiot: Soiiiid, On'unii 



Asloriu, On';;(iii 



OliilowN urk l.aUc, 



Wliuii »'<il- 

 K'cIimI. 



Fkiiii uliiiiii re ciiviMl. 



Ur. Geo. Siiclilc'V, V. S. A. 



A.N. S., I'liila.'. 



Dr. C. M. U. Kfiiudly 



Fort Ivlainnlli. Oki'.mmi UcI. 'J, 1S7U 



(iarii.sdiiCircli, W'iisli 



Km I Wall I Walla, 



Wanh. 

 ilo 



On';;<tii 



Koit Walla Walla, i 



Wash. I 



do 



do 



Kurt Klaiiiatli Drcuoii i 



Koit Ciislcr. Moiii . . I 



Willi-s Witlirli 



('apt. ("lias. liiMidiro 



.Imii' — , )(<H1 do 



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, II-81 



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I.ii'litriiaiit Miilli'ii . 

 ("apt. Cha.H. liLiidiro 

 do 



do 



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II. M.KIdoiTv, M. I) .... 

 Capt. Clias. Itciidiri' 



Si'iiiialii ). Wash .\. (;ainplprll 



2 Wa.slilii;;toii I'c i ijloi \ 



Naliiic of sjHjci- 

 iiion. 



Ii'idiidic 

 J>o, 



1)0. 



Do. 

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Do. 

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Do. 

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1)1-. J. (i. Cooper Ak'uhuliu liirva. 



AMHLVSTOMA Kl'IXANTIIUM Coitc* 

 rnu'cc'il. Acjul. I'hiliul., ISK!, \i. U). 



Nearly related to Ainhli/stoma mac roil net i/him IJaird, and to l»e placed 

 next to that species in any synopsis of the ju'enus. Costal folds twelve. 

 Nocanthiis rostralis. ir|)[n'r Jaw overlapping;- lower. Tail strongly 

 compressed, as loiij;' as head and body to <;roin. Head wide-oval ; its 

 {greatest width t.ne fourth in total lenj;th to theyroin. l)i<;its all rather 

 shiu't; four phalan.i;('s in fourth posterior dij;it. Internal nares as 

 widely si'.paratt'd as the external. Eye-tissure one half width between 

 the anti'rior canthus. Median dental series present in, i-' an an;j;le for- 

 wards. Tonj;ne lar«;e, deeply plicate, licnjjth, in. .(KS3; lenj'th to ax- 

 illa, .017; to j:;roin, .OH); lenjifth of anterior limb, .012; of anterior 

 foot, .001; of hind limb, .((14; of posterior foot, .0005. 



Sides of body and tail and superior surfaces of limbs, sliiiiiiif>- black. 

 Dorsal region to end of tail and muzzle, j;amb()j;'e yellow. The yellow 

 expands on the head and forms two cross bands on the up[>er surfaces 

 of each of the limbs. The black of the sides is occasionally inter- 

 rupted by the yellow spots irrcfiularly jMaced. lU'low, dilute black, 

 dusted with minute white spetddes. 



Th(^ strui!tural dilfcrcnces between this and the .1. noicrodadiilKm iuv, 

 not many, but are well marked. They are : (1) The j;i'eater width of 

 the head, whicii enters the length (without the tail) live times in the 

 latter, and finir times in tho. A. < pi. rant hum ; and is also setMi in the 

 greater iiiterorbital width; (2) in the short toes, which are very much 

 longer in the .1. mueroihictijlum. In color this species is the more bril- 



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Tliitcii.-., Ii«. ». 



