oe 
* 
WILLARD: CRANIAL NERVES OF ANOLIS CAROLINENSIS. 39 
description for this muscle in Varanus: — “This is a triangular muscle 
arising by its apex from that part of the basisphenoid which forms the 
lower boundary of the notch whose upper limit is established by the 
prodtic bone and into which the Gasserian ganglion projects,. .. . Inser- 
tion to the full extent of the upper and lower surfaces of the pterygoid 
bone from its posterior extremity to as far forward as a level with the 
articulation between the basipterygoid process of the sphenoid and 
the pterygoid.” With this Anolis agrees quite closely; in the latter 
the origin is also from the basipterygoid process of the sphenoid, and 
its insertion is along the whole length of the pterygoquadrate. 
The innervation is from a motor ramus separating itself from the 
other motor components at the Gasserian ganglion (Plate 3, fig. 6; 
Plate 6, figs. 16, 17). 
M. pterygo-parvetalis of Bradley. (Fig. H; Plate 6, fig. 16, pt-par.) 
This muscle lies just posterior to the epipterygoid bone and its tendi- 
nous origin passes mesad of the latter to attach to the edge of the parie- 
tal, while its fibers take a direction that diverges somewhat from the 
epipterygoid and find insertion on the pterygoid just mesad to that of 
the deeper part of the pterygoideus, that is, on the upper surface of 
the pterygoid bone immediately caudad to the articulation of the 
epipterygoid. 
Bradley homologized these two muscles, pterygo-parietalis and 
pterygo-sphenoidalis posterior, with muscles described by Katheriner 
(:00) in the snakes under the same name, and calls attention to the 
fact that there are but two references to them found by him in the 
literature of the Saurians, viz., Stanius (’56) and Sanders (’70). 
Hoffmann (’79-90) does not refer to them in his description of Reptilia 
given in Bronn’s Thier-reich. Bradley, therefore, concludes that 
_ these muscles are peculiar to snakes and to those lizards (Kiokrania) 
which have a columella (epipterygoid). 
In Anolis m. pterygo-parietalis also-has a special motor-nerve ramus 
(Plate 3, fig. 6, pt-par.) leaving the main motor bundle through the 
ganglion. 
M. capiti mandibularis (temporalis). (Plates 5, 6, figs. 14-19, 
cap. md.) The origin of this large muscle is from the postfrontal, 
jugal, postorbital, supratemporal, parietal, prodtic, and quadrate 
vones. The superficial part of the muscle shows a parallel sheet of 
fibers running diagonally down to the lower jaw. The deeper por- 
Bee however, show toward their insertions a tendency to differen- 
tiate into several bundles. When the quadrato-jugal arch is removed, 
‘tis shown that the fibers having origin on the median face of the jugal 
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