Anatomy &c. of the Colies. 237 
C. capensis (text-fig. 14, p. 236). The parietal apterion 
is V-shaped, and extends backwards, on either side, from 
the eye to terminate in a pointed apex above the occipital 
region. A small apterion surrounding the eyelids may be 
traced backwards into the limbs of the V-shaped parietal 
apterion. The malar and ramal areas and the region round 
the aperture of the ear are densely feathered. The inter- 
ramal area is bounded, on either side, by a narrow apterion. 
III. Myonoey, Syrinx, anp IntEsTINAL CoNVOLUTIONS. 
I have but little that is new to add on the subject of the 
Myology of the Colies, in so far as systematic work is 
concerned. 
Garrod (6), it may be remembered, shewed that the 
ambiens was wanting, that the femoro-caudal was well 
developed, but had no accessory head, and that the semi- 
tendinosus and its accessory head were both fairly developed. 
Thus the muscle-formula, as laid down by Garrod,is A. XY. 
The tensor fascie of the thigh does not in any way overlap the 
biceps. 
1n the plantar tendons Colius, according to Garrod, “exactly 
resembles the feeble-footed Alcedinidie, and hardly differs 
from the Coraciide, Meropide, and Caprimulgidz,” while, 
according to Dr. Gadow, these tendons agree with his type V.a 
—where the tendon of the flexor longus hallucis fuses with 
the flexor perforans digitorum along its fibular side, the united 
tendons split up, succesively, into four, running first to the 
hallux, and lastly to D. IV. Therefore, according to this, 
Colius agrees with Buceros and Cypselus. 
My own dissections of these tendons seem, however, to 
shew that neither of the interpretations just given can be 
correct, Inasmuch as a careful examination of the fused 
tendons shews that the flewor longus hallucis never com- 
pletely fuses with the deeper tendon: the line of junction 
is always visible. Further, this tendon, the jl. long. hall., 
splits up into two, one branch going to the hallux and one to 
D. II. (text-fig. 22, p. 251), while the flex. perf. digit. splits 
