Jeffries on an Hermaphrodite Bird. 
[January 
18 
Springs, on May 16, 1882. In plumage it resembled females 
of the species, but on dissection to determine the sex, both, an 
ovary and a testicle were found ; the one on the left the other on 
the right side. After examination by Mr. Brewster and Mr. J. 
A. Allen, the body was placed in water to prevent its drying, 
no alcohol being at the time procurable. Two days later the 
body was transferred to a small quantity of alcohol, in which 
it remained until presented to me. 
When opened to determine the sex the body was cut on one 
side and the cloaca cut off from the rectum and the ducts, be- 
sides more or less injury being done to the mesenteries. Below 
follows a description of the anamolous organs, the kidneys, fe- 
male and male structures. 
The kidneys, of the usual structure found among the Sparrows, 
were perfectly normal in their anterior halves ; the posterior 
halves, however, were anomalous. The left kidney was much 
diminished in width at the expense of the inner portion ; the right 
kidney, on the contrary, was much wider than usual and extended 
across the vertebral column and apparently — the specimen was 
somewhat broken — joined the left kidney by an isthmus.* From 
the posterior border of the isthmus depended a lobe in front and 
to the left of the vertebral column. Accordingly while the aorta 
(1, Fig. 1) and the pelves (5) of the kidneys are to be seen in the 
anterior parts, these structures are posteriorly covered to a con- 
siderable degree. The substance of the kidneys was perfectly 
normal and with a smooth surface. The ureters were normal in 
every respect. 
*This condition is sometimes found in man, where it is known as the horse-shoe 
kidnev. 
