On a curious Hermaphrodite Frog. Ill 



71. I/ippotragus equinus, Dcsni. 



(?. 505. NMola. 

 (S . 456. Nainwala. 



72. Hippotragus niger, Harris. 



50G. N'dolu. 



cf. 4GG ; ? . 4G7. Kalonio. 



73. Tragelaphus scriptus suhsj). 

 cJ. 486,498 ; ?. 499. N'dola. 



74. Limnoircigiis spekei, Sclat. 

 cJ . 508. Kative, near Abercorn. 



75. Strepsiceros strepsiceros, Pall. 

 (J. 478. N'dola subdistrict. 



76. Taurotragus oryj-. Pall. 



J . 496, 497. N'dola. 



? . 449. Mwanu Stream, N'dola subdistrict. 



(^ . 455. Nainwala. 



VII. — A curious Case of a Hermaphrodite Frog. 

 By W. Hakold Leigu-Siiakpe, M.Sc. (Lond.). 



Hehmaphroditism in frogs is not uncommon, but that whicli 

 c-anic nnder my notice during the first week in March 1922 

 from the London area, and is preserved in the biological 

 museum at St. Mary's Medical School, Paddington, is of 

 special interest. 



On the lelt side is a normal ovary — small, since it contains 

 only the e^gs that wouhl have been hiid m-xt year. 



Un the right side is a misshapen but fairly large testis, 

 capped at the anterior end by a minute ovary, containing ova 

 to be laid the following season, the testis also bearing all 

 along its outer border a small line of eggs. The usual vasa 

 eflerentia are jjresent connecting the testis with the kidney. 



liolh oviducts arc fully developed and their internal 



