130 



ENTOZOA. 



Petalocephalus, Van Lidtli de Jeude ; = Onchohothrium, Riidolphi ; 

 = Zygohothrium, Diesing ; Calliobothrium, Van Beneden ; Antho- 

 bothrium, Van Beneden ; PhyllohotJirium, Van Beneden ; Echeneiho- 

 thrium, Van Beneden ; Octohothrium, Diesing ; Diphyllohothrium, 

 Cobbold ; Solenophorus, Creplin ; = Bothrydkim, De Blainville; = 

 Prodiccelia, Leblond ; Tricuspidaria, Rudolplii ; = Tricenopliorus, 

 Budolplii ; Hygroma, Sclirank ; = Vesicaria, Schrank ; EcMnoho- 

 thriiim, Van Beneden ; Bothrimonus, Duvernoy ; Ligula, Bloch. 



Particular types.' — Diphyllohothrium. — I have applied this 

 lengthened generic title to a remarkable species of parasite (D. 



Fig. 30. — Three views of the head and neck of Dipliyllohothrium stemmacephalum, Cobbold ; from 

 the intestine of a porpoise {Delphinus phoccena) ; a, natural size ; h and c, X 100 diam. — 

 Original. 



stemmacejjhahim) which I discovered in the intestinal canal of a 

 porpoise (Delphinus pliocmna), shot by my friend Mr. J. Jardine 

 Murray, in the Firth of Forth. For a considerable distance the 

 gut was completely choked by the presence of five of these 

 cestodes lying side by side. Four of the worms measured, 

 respectively, from seven to ten feet in length, the fifth being 

 about eighteen inches. This species, whose cephalic extremity 



