Laidlaw, Classification of the Poly clad Turbellarta. 

 Fig. 4. 



a.Ym 



va.. 



Fig. 4. Male apparatus of Notoplana evansii (after Laidlaw), P.Z.S., 1903, 



i. p. 304, Fig. 51. 

 Fig. 5. Genital antrum of Dhcocelis tigrina showing the penis and prostatic 



glands (slightly modified after Lang). 



