M. 



sing its 111 fe- 

 ll normnl \u,. 



Tin; ItATRACIIIA OF NolM'll AMHKICA. 



507 



fla aiitl S;ili- 



llCopc, AllHT- 



rate and in- 



removcd ; •.'/(, 



ll,VI)l|llllllr,ltr 



;in i)t' ci'i'ato- 



uamosal si]i- 



h, tin' car- 



ln' car-lKPtics 

 v\i\i'{\ liy Mr- 

 iriial view 

 I'. 

 ir-li()H('H .hhI 



ividcd carti- 



rtial of Mm- 



ipt'dial ; X 1 

 iic'calod ; tlir 



ents, fxci'iit 



I below, till' 

 ixas. 



I 



Frd. •>■ TIk' Haiui' Hpocii'H : aiiotlior individual ; sanic view, without stisppiisoriuni and 



lowtT jaw. 

 tl. /iitracliyn firratiiH Copr, r'mM postcrioi' part of skull, snin'tior view, Nlio\vint{ 



intcli (Ty) for tjiiiimnii; nit'iiihr.'uui; natural si/.i' ; fiuni the I'crniian bod 



t)f Texas. 

 7, Tbe Haine Hjieciuien as \\)i. (I, from below. disj)la,vinn colunnlla or stapi's. 



ri(. 1. 

 :t. 



4. 



fi. 



9. 

 10. 

 11. 

 12. 



i;!. 

 11. 



15. 

 10. 

 17, 



IM, 

 lit. 

 'iO, 

 •il. 



PLATE LI. 



li'inia rirtmui'i, lijoid apparatus of larva represented on Plate XLVH. fij:. 2, 

 riniit side, from below ; ri>;lit ceratobraneliials cut olfdistally : X l. 



h'aiia vltimatii, larva, just free from ejig x *> : a, tjie same from below. 



h'linii claintilo, saiiu* brood as "J, three days from e|ij{; rijiht fiill wanting. 



h'atiii (•iit(nl)ia)i(i,yinu)ff larva with small fore lejr inclosed in branchial cliani- 

 ber; X -i. 



liana vaUnhiana more advanced ; fore ley partially protruded from bran- 

 chial lissure ; X 'i. 



Hiiiiii luiexbUiuu, individual represented in ti^;. It, Plate XLVII : foreleg fully 

 protruded, but the branchial lissurt* ((d' right side) not closed ; X 2. 



lUiHtt vatefhidiia, same as lig. I, disphiying form of externa", branchial cham- 

 ber : X 2. 



Hana votexbiana, larva of age of tig. ."i, showitig branchial chamber, nud the 

 pharynx bounded by a dotted line; x 2. 



liana riirticcnii, hyoid aj)i)aratus of adult, from below. 



J!ana artnlata ch-ftihia, hyoids from below, \. 



liana drantniii draiitoni, hyoid apparatus from below. ;. 



liana monteziimir, hyoid apparatus from lielow, f. 



yi'((»ia miilahrii/rnnit, hyoid apparatus from below, j. 



lljjla rarolintnsin, hyoid ap))aratus, f. 



lAlhodjitex httraim, hyoid apparatus, \. 



Spta miiltiplirata, hyoid apparatus from below, {. 



Spca hammoiidii homliifroiiK, hyoid ajtparatus from below, \. 



Sjwa hammoiidii hommondii, hyoid ai)paratus from below, -{. 



Cliondrolus tcjAxiis, hyoid of young just afte. absorptiou of liranchia;, X 4. 



Typhloiiectcs onnprcfiHicaiidua, hyoids, \. 



DcrmophiH mexicaniie, hyoids, (. 



PLATE LII. 



Viscera of Hatrachia. 

 Fid. 1. Xecturus lateraHs. 



2. tmblystoina nuxivanum, larva (Sired(Ui). 

 '.\. CryptobranclniH alleiilwnivnfiiii. 

 4. Amphiuma iiieann. 

 Lettering: P, pancreas ; oe, o'sophagus ; I'v, portal vein ; pyl, pylorus: o, gall-bladder; 

 dc, ductus choledochus. 



PLATE Lin. 



Viscera of Batrachia. 



Fiii. 1. Siplionops anniihUus ; c, urinary bladder. 

 2. Salamandra maculosa. 

 :{. I'ipa amcricana ; py, pyloric constriction. 



4. Xinopun capensis ; dc, ductus choledochus; py, pylorus; cr, ca'CO-rectal con- 

 striction. 

 •'■>. Biifo sp. 



•I 

 I 



ill 



1 ,1 



; 1 



ifa: 



