or
mandibulae externus, Edgeworth, 1935:58-60--? part of M.
capiti-mandibularis medius and all of pars superficialis,
second part, Adams, 1919:100-101.

~_M. pseudotemporalis profundus:_~ M. quadrato-maxillaris,
Gadow, 1891:322-323--M. pterygoideus externus, Shufeldt,
1890:20-21, figs. 3, 5 and 11--part of M. adductor mandibulae
medius, Edgeworth, 1935:58-59--? part of M. pterygoideus
posterior, Adams, 1919:101, pl. 8, figs. 2 and 3.

~_M. protractor pterygoidei:_~ part 4b of M. temporalis,
Gadow, 1891: 322-323, table 27, fig. 4--part of M.
entotympanious, Shufeldt, 1890:19-20, figs. 3 and 11--part
of M. spheno-pterygo-quadratus, Edgeworth, 1935:57.

~_M. depressor mandibulae:_~ M. digastricus s. depressor
mandibulae, Gadow, 1891:318-319--M. biventer maxillae,
Shufeldt, 1890:18-19, figs. 3, 4, 5, 6, 7 and 11.

~_M. pseudotemporalis superficialis:_~ M. spheno-maxillaris,
Gadow, 1891:323--part of M. temporal, Shufeldt, 1890:16--part
of M. pseudotemporalis, Hofer, 1950:468-477--part of M.
adductor mandibulae medius, Edgeworth, 1935:277.

~_M. adductor mandibulae posterior:_~ ? part of M. temporal,
Shufeldt, 1890:16--part of M. adductor mandibulae medius,
Edgeworth, 1935:58-59--? part of M. pterygoideus posterior,
Adams, 1919:101, pl. 8, figs. 2 and 3.

~_M. protractor quadrati:_~ part 4a of M. temporalis, Gadow,
1891:322-323, table 27, fig. 4--part of M. entotympanicus,
Shufeldt, 1890:19-20, figs. 3 and 11--part of M.
spheno-pterygo-quadratus, Edgeworth, 1935:57.

The terminology adopted by me is that of Lakjar (1926) except that the
divisions of _M. depressor mandibulae_ are designated by the Latinized
equivalents of the names used by Rooth (1953:261-262).

~_M. pterygoideus ventralis lateralis._~--The origin is fleshy and by
aponeurosis on the ventral side of the palatine anterior to the
palatine fossa. The insertion is fleshy on the ventromedial surface of
the lower mandible and continues along the anteromedial surface of the
internal angular process to its distal tip. A few fibers leave _pars
lateralis_ and insert on an aponeurosis which receives also all the
fibers of _M. pterygoideus dorsalis lateralis_. The latter fact may
have prompted Rooth (1953:257) to make the statement that the fibers
originating on the dorsal part of the palatine inserted more laterally
than those o