370 DISEASE IN WILD MAMMALS AND BIRDS 
pheasant as small rounded compact well outlined tumors. 
It is thought that they represent products of healing after 
osteomalacia or rickets. An osteochondroma growing 
from the nasal cartilage was found in a caracal {Felis 
caracal), a fibro-osteoma was found on the vertebra 
and clavicle of a Beechy's spermophile {Citellus gram- 
murus heecheyi) and a fibroma occurred on the clavicle 
of a lesser snow goose {Chen hyperboreus hyperhoreus). 
The only other tumor from a bone was an endothelioma 
from the periosteum of the clavicle in a moorhen {Galli- 
nula chloropus). It corresponds to the usual idea of this 
tumor. It probably caused death by cachexia, and by its 
size, interference with respiration. The only secondary 
tumor was a metastasis in the tibia from a spindle cell 
sarcoma of the kidney in a scaly ground dove {Scarda- 
pella squamosa). 
The Muscles. 
The skeletal muscles of the wild animals of our collec- 
tion have been quite free of pathological lesions such as 
atrophies and dystrophies and indeed seem relatively 
seldom affected by disease. Occasionally hyalinization 
will accompany infectious disease or local suppurations 
will spread into the muscles. Much more often filaria, 
sarcocystis, flukes and larval insects will be found resi- 
dent within or between muscle bundles; this will be 
discussed at a later time. Six tumors have been found, 
three of which certainly developed in a muscle, while for 
a fourth case no primary growth was discovered. This 
last one, to dispose of it at once because of its peculiarity, 
was an adenocarcinoma found as a firm, conglomerate, 
encapsulated mass in the sheath of the gluteal muscles of 
a waltzing mouse (Mus wagneri rotans). No other growth 
was discovered although it must be admitted the body was 
not exhaustively searched for some tiny nodule to which 
primary focus this muscle mass could have been sec- 
ondary. That metastases may be larger than original 
