On some remarkable new Forms of Caryophyl- 

 laeidae from the Anglo-Egyptian Sudan, and 

 a Revision of the Families of the Cestodaria. 



By 

 W. N. F. Woodland, 



Wellcome Bureau of Scientific Research, London. 



With Plates 24 and 25 and 1 Text-figure. 



Contents. 



PAGE 



Introduction .......... 435 



WeNYONIA VIRILIS, gen. ET SP. NOV. ...... 437 



WeNYONIA acuminata, SP. NOV, ...... 444 



Wenyonia minuta, SP. NOV. ....... 446 



CaRYOPHYLLAEUS PILIFORMIS, SP. NOV. ..... 447 



The Genera and Species of the Caryophyixaeidae . . 450 

 On the Caryophyllaeidae, Gyrocotylidae and Amphilinidae, 



AND Cestodaria in general ...... 460 



On an Immature Caryophyllaeus sp. from Auchenoglanis occi- 



DENTALIS, CuV. AND VaL., 1840 ...... 467 



Summary .......... 467 



Literature References ........ 468 



Description of Plates 24, 25 . . . . . . . 470 



Introduction. 



Up to the present time ten more or less well-defined species 

 of the Cestodarian family of the Caryophyllaeidae have 

 been described. These ten species have been named as follows : 

 Caryophyllaeus laticeps (syn. mutabilis, Kudolphi, 

 1801), Pallas (1781); C. tuba, Wagener (1854); C. fen- 

 nicus, G. Schneider (1902) ; C. syrdarjensis, Skrjabin 

 (1913); C. armeniacus, Cholodkovsky (1916) ; Mono- 



