TIIK MATK/iCHIA OK NORTH AMKRICA. 183 



No species liii.s yet beeii roimd east, of llie I'.u'il'K! coast region. 



or. Distal liaH'ot tuil ioiiikIciI or oval. 



haij;<', (itoiit ; tliiiinlttlt'Vfloiii'd; liiiy;(is slioit ; i>aiasiiluiioi(l snics tianow, vom. 

 ^I <TiiH!8 8t;oiiBly ciirvfil l)iukwar(ln; widlli of lit-ad l-.'i |«> j,Mi)in; li;;lit liiowii 



iil>(>vi>, with yellow si»i)t.s I. liitjnliris. 



SiiiulliT, HlutitliM", tliinil) not (liHtiiu't, liii;;ci-s loiii;, Nltnili r; iiaiasplicnoiil sciics 

 J wiilur; voiiii'liiio KiTicsNcaicfly rccnivcil ; wiiltli o|' Inad li.;i;i iIiikh in lcii!;lli 



to i^roiii ; aliovf lilacU, sidi.s ;;ia.v t. I'lrims. 



■^^ not. DiMtal liair ol tail stroii;;lv lonipriNsi'd. 



Woliiisl ; mii/zlc Willi'; |)aras|diciioid tooth patch wid" ; difjitsMhoit, th'- liim r 

 not I'H'v; width of head 'i-.'i tiiiicM in lni;;lh lo i^iom: Idack, spiinkh'il 

 with small liliiish spots aliovc I. Uraiiun. 



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AITODAX I-rtUrHRIS Hallow. 

 (I'latoa?. Ii>;s. I-I; :i.".. li;.. :i; |H, liu. 1.-,.) 



.Inaiilix Uiqubr'tH HaJid, Icoiio;;!'. I'.ncycl., II, Hl'.t, p. 'A'iti ; Ihiird Ar fiirard, I'loc. 

 Ac. I'hila., H.'.:i, p. :iic,>: Maird, V. S. Kxpl. K.\pcd., Ilcip., I'l. i, li«s. •>(i-:i;i, and 

 Rcpt. U. S. Kxpl. Suiv., .Mil, ]). IV, 1*1. :ii». li;,'. I: (Jopc, I'loc. Ac IMiila., isllt, 

 |i. I<i<): SIrancli, S.ilani., ]>. 7.'> : Itonlcn^rcr, Cat. Hatr. (iiad. Itrit. Mils., cd. ii, 

 ICHJ, p. Wi. 



Siihimiiiiiird liiiiiiliriH llaliow., .lonni. Ac. IMiila., I'^H, p. I'JIi. 



Tmiiliii .' hiiiiihrin (ir.iy, (-'at. Matr, (irad. Mrit. Mas., cd. I, p. v'(i. 



.tmliljiMliiiiKt iiinicldliim tiray, ihiil.. p. 117. 



The head is eh)ii;;ate(l, vcf.v iniieh depressed, liatteiied, and when 

 viewed IVoin above is miieli swoUeii posterioil.v. Tlie stioiit is very 

 proiiiiiieiit, protnidin;,' beyond tlic lower Jaw. Tlie nostrils are ele 

 vated, lateral, siibtcrininal, and far apart. The eyes very prominent ; 

 their diameter enters only once in the distance between their anterior 

 j'im and the extremity of the snout. The cleft of the month is larj:e 

 and imdiilafinj,'. The maxillary teeth are proi)ortionally lar<;e, espe- 

 cially on the lower jaw. They are lanceolate in shape, very acute ami 

 thill. The palatine teeth are iiicoiispieiioiis, rather blunt, dispo.sed in 

 an open V«haped lij;ure, the sninmit of which is directed ba(!kward, 

 whilst its branches extend to the internal and posterior margin of the in 

 tier nostrils. There are two elongated patches (»f miiinte teeth on the 

 parasphenoid, clo.seiy appro.ximateil anteriorly and diverging slightly 

 posteriorly, where they are rounder and broadesi. The cordiform or pel- 

 tall tongue tills the whole space of the inferior lloor of the mouth. It 

 is alt ii'lied along its meitial line, whilst its sides are perfectly free, as is 

 also slightly its tapi-ring tif) and its posterior bilobed expansion. 



The neck is elongated and slightly (!ontracted; a distinct ami well- 

 iiiarked gnlar fold may be observed. It no doubt exists during life, 

 tliongh its|)resence has been contested by some writers. 



Tlie body is siibfiisifoim, diminishing towards both extremities. The 

 siih's of the abdomen are transversely folded thirteen times between 

 axilla and groin. Tlie tail is almost as long as the head and body to- 



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