462 T. H. JOHNSTON AND C. D. GILLIES. 
to see if there was any tendency towards an ovotesticular 
condition, but the histology was normal. 
Explanation of Figure. —k, kidney; 1.l., leftlung; M.d., Muellerian duct; 
r, rectum; r.l., right lung; ¢t, testis; wu, ureter of right kidney; v, verte- 
bral column. 
Sketch ofa male Hyla ccerulea with the Muellerian ducts 
typically developed, (The alimentary canal and liver have 
been removed, while to expose the right Muellerian duct 
the lung, kidney and testis of that side have been displaced 
to the left.) The figure was kindly drawn by Mr. Hubert 
Jarvis, Assistant Entomologist, Brisbane. 
