1H2 I!i:lm:ti\ iu, rxiT::!) statks national Mrsi;ir>f. 



Sjitlrriiri nihir uliilirijin. Itail'il. 



(■jliilipiiiic Nil 'if 

 niintlM-i'. H|H-f. ' 



Mm 



l.iicalilv. 



i:i;sKiivj': skuik.s. 



Willi I' ■ I Nil III')' lit MIH'I'' 



,1.1 lliilll ulliilli II irlMll. ' 



ni iilril. lllirll 



lUT.'i :.' (ii'iiiijiii... 



Dr. W. I.. iloiii'H .Mroliiilir. 



iV/xVccyx'i nilnr iiiinilniiiix llaii'il. 



riiil'.S. Kll.tinl Alioliiilii (t\|i)') 



Siiiilli Miiiiiilaiii. Cat- IH4H .... 

 li'^li'. l-a. I 



S.iliiii. N. »' I .r. T. I.iii. liai'k 



.Mii.i'villi. .>>. (• i l»i..r, II. Ilaiialt 



I'Mri' .S|ii iii;;H. Trim .. I'liil. I!. (iHi'ii 



Iliaiiroit. .\ '! Will ,Siiiii|iiiiii 



IlilUliiiiiiiiiili, N. <: I M. A CiiilH 



I'liiiin (.'iiiiiitv, 'J'i'iiii I •!. N. It. Siai liiiii>ii;ili . 



Do 

 ill.. 



III! 



I III. 

 III). 



I 



AUTODAX r.oiilciificr. 



Ami. iiiid Ma;;. Na(. Ili.st. H>7, p. O*. 



.Itniitht liainl, Icmid^i. Mnc.vcl., ii, Hl'.l, p. '2''t'>; (iiiaril, 1'. S. Kxpl. F.xpiil., l>'ri>., 

 p. H; Cdpf, I'ldcud. Ac. I'liila., IM'.I, p. IC.I; Sliaiu'li, S.ilaiii.. p. M ; 

 Itiiiilciigi'i', Cal. lialr. (iiatl. ISiit. Miih., ( d. li, Itif'M, p. fi'.'; iiom. pi'a'occiip.'i- 

 tiiiii. 



Toiijjue iittaclu'd IVoiii ^ilo.s.soliyal to aiitoiior marjiin on the nu'diaii 

 lino; coiLsidt'ialily free. One picinaxillai'.v bone. V»)MU'rin(» tcclli on a 

 rid^c, wlii(;li is conf iimoii.s lii'twt'cii the interior iiaics. Maxillary teetli* 

 confined to (lie anterior part of the areli, eonipre.ssed, knil'e shaped, with 

 entire enamel; inandibniar teeth of similar Ibrm and Iar;;edevelo|>nieiit, 

 few in nnml>er, and confined to the anterior half of the ranins. Toes l-.'t. 



This (Mirions ^enns is fninished with l)v far the most powerful den- 

 tition of any of e.\istin;jr salamamh'rs, and lesmiivles in this respect 

 the dfciieniof theCoal .Measures, Ibaeh.vdeetes, llylerpeton, and II.\Iono- 

 mus. In other points there is little difference between it and IMethodnn. 

 Oin; marked feature brin<;s it in-arer Desmo.unathus than any other 

 fjenus of IMethodontiche. The e.xoccipitoinoiHics are each furnished 

 with a hij;h lonj;iludinal crest, ov«'r which fhe temporal muscle i)as.scs 

 from its oiij^in on tlie atlas. It has, however, the usual ori;;in from fhe 

 nH"lian line of the jiarietrds, which scarcely exists in Desmo^xniithus. 

 This line is marked in A. lujiuhris by an elevated crest. The j-nd of the 

 nnizzle in that spccMcs bears evidences |r> ;i habit similar to that which 

 accompanies the sin^Milar structures of l)esnn>;;natliiis, viz, that of bui' 

 rowing; or rootinj;' ainoufj stones or of her resist in;; objects. The derm is 

 similarly adherent to the bone , and the latter is exosfosed and ru;,M)Us. 

 The prefrontal bones are well d(^veloped. 



* (iiiiinl, /. <\, (icscrilii's llio ti-i'lli a.s not lixixl to Hie Jiiw. and capalilr " of .'i depres- 

 sion liai'U wards." Tlii.s is only trnt' of .sncci'.ssion.'il tcrfli or foetli aliniil to lie slicd ; 

 till' I'linrtidnal li'clli ,irc. lirniiv anrliv'o.scd. 



l***- 



sides 

 axilla 



