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Tin: UATKAClllA OK NolM II AMKUICA. 



XKNOIMD.K. 



253 



No rilis; viTtelMii' o|>istlio('<i'lt)its ; oh ilium atlaclKMl to tlu^ ninth 

 vci'tcluii only. Conicoids and i'|>i(UM'a<'oi(ls uell scpaiati'd I'roni tlittsc of 

 the opposite side. Trt'tli present ; siicial <liapopli,vse.s dilated. 



Oiu' j;enns, Xeiiopns, with three spe«'ie.s in the re;,no .ICthiopica. In 

 this the interorltital ellunoiil plate, tliou;;li Ion;;', is not inodnced ante- 

 riorly, and is entirely eoneealed hy the tVontopaiietal. l<'rontoparietal 

 stron^^ly ossilied, oveihan}'iny the i-onlliient prelVontals. The prefrontal 

 does not always extend to it. The first two vertelua' are separate, but 

 tint sa(*ral and eoeeyx eonllnent. There are ossa nasalia above the 

 nares. Terminal plialan;;(>s acnte, simple. l'iXt«>rn,d metatarsals 8ep- 

 arated by a web. (Plates 41>, lij;. lo ami (Jl>, fi},'. li.) 



l'AL.K()l'..\TU.VUIlIi).l<:. 



No ribs; os ilinm attaehed to iliediapophyses of tiKM'oiitliient ninth, 

 eighth, and seventh vertebra', whith form a disk; nioslyle attached by 

 a doable ;>lenoid eavity. l-'rttntopariefal strongly ossilied, m»t proiliiced 

 farther than the separate inefrontals. l-)\ternal metatarsals |>robably 

 separated by a web. 



The j;enns J'tthrohafntrlms, Tsch., represeided by several species in 

 the ."Miocene ( f (ieiinany. The sn|»eritn' plate of the ethmoid was (ron- 

 cealed, and the atlas eonllnent with the first vertebra, leaving but six 

 between the oceipnl and sacrum.* 



\'on .Meyer descril>es the vertebra' of /*. ijiiiantvidnxs pvoc(e1otts, while 

 some of them are li^nred as o|iisthoco'loiis. Woltersdorllt states that 

 they artt pro<'(eloiis. .\ specimen in the IJritisli .Miisenm which 1 

 examined has opistlioc<eloiis vertebra'. It remains, therefoie,a question 

 of interest whether this family beloii;;s in the .V^lossa. Wcdtersdoilf, 

 who has stinlied it very carefully, refers it to the Arcifera,and to the 

 nei,i;liboi'liood of the T'elodytida*, although admitting various points of 

 resemblance {o Xeiiopiis. lie describes nine si»eeies from various parts 

 of central Kiirope. 



AliCIFKK.V. 



In this tiibe the extremes of the .series are more diver.se than in the 

 others, and depend on the following features: 



(1) In that nearest the A.ylossa the vertebra' are, like those of the 

 latter and of the ►Salamanders, concave posteriorly and convex ante- 

 riorly ; in the other extreme the reverse. These features are not as ir- 

 reconcilable as ini;;ht at tirstsi^Lt ai)|)ear, as the intervertebral spheres 

 do not be<;ome lirmly attac^hed to either (teiitrum at maturity in .some 

 individuals of lUn-horocutcs pcronil, I'dolxtics fiisciis (Stannius), and 

 CultrqH's prorincialis (Dujjes). (Ij) Tho.se with opisthoc<elous vertebne 



' I'alii'initojiiiiitliii'it. Ill, ]>. MT. 



t L'cluT rossiio Fiii^the instn's. das ;;. I'lilii'olcitiiieLiis, MagtlobiU}!, 18d<3. 



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