4 Observalions Upon the Morphology of 
Passing next to an examination of the patagial muscles 
of the shoulder, I find a very small tensor patagz longus, 
coming off from the pectoral muscle and lying flat against the 
t. p. brevis, from which it also receives fibres. Its tendon 
has the usual course and insertion. Although the temporo- 
alaris is fairly well developed, the dermo-tensor patagzi 1s 
only represented by a few fibres, while its tendon is lost in 
the integuments of the propatagium, which latter here is 
barely manifest * 
Nearly as large as the biceps, the chief muscle of this 
group is the tensor patagii brevis, which, arising as usual 
from the os furcula and coracoid, covers, as it descends the 
dorsal aspect of the shoulder, and its broad, single, though 
slender tendon is inserted into the fascia only of the 
extensor metacarpt radialis longus. We also find present 
asmall tensor patagit accessorius, arising well up on the 
fascia of the biceps muscle, and its well-defined cord-like 
tendon passing to merge with the tendon of the ¢. p. lon- 
gus, at about the middle of ‘its course. 
This arrangement of these muscles seems to agree very 
well with the corresponding ones, as we find them in 
pigeons, although ¢ even here the forms vary to no little 
extent.t 
One is struck at once in dissecting these wild fowls, 
by the extreme delicacy and whiteness of their flesh. AI] 
three of the pectoral muscles are present, and, as in other 
members of the group, the pectoralis major is of great 
extent. Upon dissecting out the muscles of the thigh, I 
find them to agree in all matters with the OCG left us 
of them by Garrod.t 
A very handsomely developed ambiens is seen; and the 
nervous, venous and arterial supply of this pelvic limb 
seems to depart. in no way from a condition of affairs well 
known to obtain among the typical Galline. 
* SHUFELDT, R. W. ‘‘ A Review of the Muscles used in the Classification of 
Birds”. Jour. Comp. Mep. anp SurGeErRyY, Vol. VIII., No. 4, 1857, pp. 821-344. 
+ Parker, T. J. ‘‘Zootomy.” Lond. 1884 (Chapter on the Pigeon), pp. 
251, 252. 
+ Ibid. p. 188, Fig. 1. 
