96 The Alligator and Its Allies 
the upper transverse processes of the last three 
neck vertebre, and, becoming tendinous, is in- 
serted on the hinder border of the squamosal. 
Collo-occipitis. Arises from the transverse pro- 
cesses of the posterior five cervical vertebre, 
extends directly forwards on the ribs of the verte- 
bree, and is inserted under the articular surface of 
the lateral occipital. 
Occipito-epistropheus (short, straight, hinder 
head-muscle, or extensor). This muscle springs 
from the lateral surface of the body of the second 
neck vertebra and inserts itself on the basi-exoc- 
cipital, under the preceding muscle. 
Cervicalis Adscendens. Arises in great part 
from the angles under the most anterior ribs; a 
smaller part appears farther above where it is 
covered by the rhomboideus muscle. It is in- 
serted on the upper side of the five posterior cervi- 
cal ribs and on the distal ends of the long second 
cervical rib. 
THE MUSCLES OF THE SCAPULA 
Capiti-sternalis (Sterno-mastoideus). This is a 
fairly large muscle, on the side of the neck, that 
extends from the skull to the breast and from the 
middle of the neck is divided into two portions: 
(a) an anterior part or atlanti-mastoideus (Plate 
I., Figs. 1 and 2, cst') (upper end of the ‘‘head 
nodder,’’ sterno-mastoideus, anterior part of 
