28 
Mould Infection in Sea Lions. 
Between January 15th and February 9th four sea 
lions of one or another species came to autopsy; two 
from the round and two from the square tank. Those 
from the square tank showed similar intestinal conditions, 
while those from the round tank had the same kind of 
a chronic skin ulcer which on finer microscopic examin- 
ation were found to contain the same kind of a mould. 
It is in the presence of this mould that the interest in 
this finding inheres, for it is beyond doubt a bona-fide 
infection and not the secondary invasion which we always 
at first suspect when this class of organism is found. In 
the first beast only the external sore was found infected, 
and this case was valueless without further cultural 
and inoculation experiments. The second beast, how- 
ever, showed subcutaneous abscesses in addition to its 
ulcer, i. e., deep lesions closed to the skin surface and 
resulting only from transmission through the blood. 
The mycelia of the mould were found free in the central 
pus of the abscess when examined in smears; and in the 
fixed tissue of the abscess wall in microscopic sections. 
The mycelia are unlike any I have ever seen reported 
heretofore, being several times as broad and long as 
the common examples. 
Tumors. 
The following tumors have been encountered this 
year: 
Endothelioma of the pleura in a Bengal Tiger (4237). 
Squamous cell carcinoma in the subcutaneous tissue 
of a Gerbille (4268). 
Myxosarcoma in pectoral muscle of a Bean Goose 
(4219). 
Papillary adenoma of left kidney in a Mongoose 
Lemur (4356). 
Simple adenoma of thyroid in a Finch (4427). 
Melanotic sarcoma in liver of a Cuvier's Toucan 
(4515). 
