15. Note on Persistent Oviducts and Abnormal Testes 
in a male Rana tigrina. 
By D. R. Buatracnarya, M.Sc.; anp B. K. Das, M.Sc., 
The Muir Central College, Allahabad, India. 
(One text-figure.) 
ent oviducts, but no trace of ovaries. There were a pair of 
testes of abnormally unequal size. The ureters, kidneys and 
other structures more or less resemble the normal type. 
The disposition and character of the oviducts. 
A pair of convoluted tubes, certainly homologous with the 
oviducts of the female, is present. 
e right oviduct opens by a wide mouth or ostium near 
the base of the right lung (text-fig. 1). The mouth (D.R.O.) 
ved by a narrow and straight tube about 1 mm. in 
behi t a distance of about 1°7 cm. from th terior end 
of the left kidney. The interruption in the oviduct has a length 
4 mm. T t recommences as a blind bulb-like 
voluted and thin-walled tube which becomes enlarged post- 
eriorly to form the uterus—the two uteri opening close to- 
gether on the dorsal wall of the cloaca. 
The disposition, relative size and minute structure of the 
right and left testes. 
e right testis (ie. the one on the side having a well 
developed oviduct) is very much smaller than the left one and 
