FIG. 229.—MUSCLES OF HEAD OF DOG

_a_, Scutularis; _b_, _c_, anterior auricular muscles; _d_, helicis;

_e_, antitragicus; _f_, _f_, zygomaticus, out of which a portion is

cut; _g_, slip of panniculus; _h_, parotido-auricularis; _i_,

masseter; _k_, malaris; _l_, levator nasolabialis; _m_, levator

labii superioris proprius; _n_, dilatator naris lateralis; _o_, _p_,

buccinator (buccalis, molaris); _q_, retractor anguli oris; _r_,

digastricus; _s_, mylo-hyoideus; _1_, base of concha; _2_, parotid

gland; _2′_, parotid duct; _3_, submaxillary gland; _4_,

submaxillary lymph glands; _5_, buccal glands; _6_, zygomatic arch;

_7_, maxilla; _8_, dorsum nasi; _9_, parotid lymph gland.

(Ellenberger-Baum, Anat. d. Hundes.)

]

The =depressor labii inferioris= is absent, unless we recognize as such

a thin stratum arising on the body of the mandible and spreading out in

the orbicularis.

There are no special =nasal muscles=, the homologue of the lateral

dilator ending almost entirely in the upper lip.

The =buccinator= is wide and very thin, and the two planes of fibers

cross each other.

The =palpebral muscles= present no very noteworthy special characters.

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