MUSCLES OF Till: HEAD. 229 



1 A l.i. 'a-t/unili*. thicker and more develojx <1 than in the Horeo. Its most anterior 



- ^li<le In-iii-atli tli.- /y-omuti.-iis. ;iiil HIT lost on the olvcolo-labialis surface; the 



>ver the a|>onuurotic tendon of tin zy.u'omntioo-lal.ialis, and are 

 nmli -il \Mth those of the cuticularis. Above, it joins the orbiculari.s of the eyelids 

 in it still limn- intimate manner than in tin Morse; so that it is alm.>.-t impo-i'Me to 

 distinguish the limits of tin- two mu.-cles (liij. II'J, 4). 



\ xii IH rii<ix,>-l,iliialis continued, above, with the inferior border of the frontal or 

 t'rontiMMitieularis muscle; a:nl divided. intVriorly, into two branches, which comprise 

 IM-I \\i-.-n them the BnpermaxUlo-labialiji and the pyramidalis-nu.-ulis. These two 

 branches, however, are not disposed as in Solipeds, the anterior covering the preceding 

 miiM-les, and the posterior, of but little importance, passing beneath them to lose itself 

 in the substance of the upper lip (fig. 112, 3). 



;. A ntpermaxitto~labiaU, which gains the middle of the muzzle by passing along 

 the inner side of the no.-trils (tig. 112. 1). 



7. Two additional tnpcrmaziUo-labiaUl muscles, considered as accessories to the 

 tir>t, and which originate with it. Each terminates by a ramifying tendon that passes 

 under the n.>.~tril to mix in the tissue of the upper lip (fig. 112, !',!'). 



.,//</,;//.* or iji-'nl ntpermaaitto-natalUf situated between the supermaxillo- 

 labia'.i-i and its two accessory muscles, and deriving its origin, in common with tin-.-.- 

 three muscles, in front of the maxillary spine (fig. 112, 2). 



\ ///<-///-/((/<>. c .ntbuuded with the alveolo-labiulis, and having no terminal 



i. 



10. A mrnto-lnliinJ!*, attached to the body of the inferior maxillary bone, as in the 



by two ini'l'lh i,*t.rior muscles. No anterior middle muscle has been found by 



u>; and it is certain that there is no naso-tratmveraali* or small gupermaxillo-nasalis 



In the Sheep, the nupernaso-labialis does not exist ; apart from this peculiarity, 

 there is no difference between the facial muscles of this animal and the Ox. 



This animal has neither the lachrymalis, supernasc,-labiali*, or naso-transver- 

 muscles. The sinnll *HI>I rntitrillo-uasalis is present ; it is short, very thick, and 



I ii'-ar the margin of the nostrils. The supermaxillo-labialig and the great 

 ,<trill>-n*nH* are replaced by three fleshy "bodies, nearly parallel, lying on the 



.ide of tin- fa e. The superior originates in the lachrymal fossa, and terminates by a 



D in the middle of the snout. The inferior, with the middle, leaves the imprints 



in front of the zygomatie ridge, and is continued at its inferior extremity by a tendon 



divide.! into several fibrilla?, which p;uts below the nostril to be united to the tendon of 



]ii.>r portiou : this is done in such a manner thut the external opening of t lie 



i.-le.l on the inner side by a kind of fibrous cravat which, when these two 



inn-. 1 -.curries this ujM-ning outwards. It will also be understood that the 



r t!. -h\ Kody. acting alone, outfit to elevate the snout, while the inferior 

 -e it in drawing it to one side. With n gard to the intermediate fleshy mass, it 

 repre--ntutivc of the pyruniidalis of the Ox, and terminates in a gnat quantity of 



)lirill:c' at the internal alu of the nose. 



\. -In the liny and Cat the following peculiarities are found : 

 Tin- /.('./>///< (-T orbicularis) i.-. .|iiit" ni-lim. 

 Tin- liHi'i-iniitnr is very thin and form". I of only one muscular plane. 



taticoJabfalit is continin d. rapeiiorly, with the /yL'omaUvaiiririirali^. 

 Tli. -l<il. in/in n-|ir. -ents a \sidc-, umlividid, miiM-ular expansion, united 



:ly to the outieularis of the forehead, and terminating interiorly on th. uj.per 



Up. 



/iiHisilln-ldlriali* and the ntpermajtiUo^iHuatU magmu constitute a single 



lormed of -. \, nil parallel fasx-icnli. wliich take their origin above the Mipra- 

 ..:nen, and t. rminate together at the external wing of the nose and in the 

 lip. 



.itiisillii-wiitiili* finrnif. or na*o-traiutreriiH*. 

 lit ,ii.1> rii.f (./. /-/-r.-x.r ,i/.-. ;<.(-/) i- pi rfi ctly de\c!..[ , .}. 

 ,-M. /.(// and its susiHu.-ory mu.-cle. the miillle posterior, are scarcely 



15. Mn **>tirf<- r 7 r iiii>iin>-iinu illnrij lleylon. 



In Hun, I'lciii/..-. the niOMtier and t> iii/mml are n..t so largo as in 8oli|N>dx. Iii the 

 i.owevcr. they olV r a remarkable developim-nt. The origin of th.- t 



ihe middle line tlian in tin 1 1 I : - ..l.liijniiy 



t also great r. and th- m ,M ments of didtiction it gi\es th. low>r jaw nn- m,.r 



