rauiil.v TAEiNllDAE. 



Uiasiiusis; HeuU with 4 oup-shuped suokci.s. roslelluni pie- 

 senl but not always evident; uterine pore wanting; genital 

 pores generally marginal; body always segmented. Type 

 genus: Taenia Linne, IToS. 



This family is an exUeiuelv iuipoitaui oue froui au 

 agricultural stauiipoiut as all the tapeworms of ilo 

 mesticaieil animals (with the exception of a few be- 

 longiuj,' to the Bolhiiocephalidae) are classitieii here. 

 I'rabably all of the tapeworms normuUv found in [loiil 

 li.v belong to the subfamily Dipylidiinae. 



The subfamily Taeniiaei (type genus; Taenia Linne, 175S) 

 contains mostly large tapeworms, the adult stage of which 

 lives in carnivorous animals (T. saginata of man, T. marginata 

 of dogs, for instance) while the larval stage lives in herbivor- 

 ous animals (Cysticercus bovis of cattle, C. tenuioollis of sheeii. 

 cattle, etoj. 



The subfamily Anoplaocepholinae ttype genus; Anoplocephala 

 !•;. HI., 1S4S) contains most of the adult tapeworms of horses, 

 cattle, sheep, rabbits, and allied animals. 



Subfamily .VIKSLX^ICSTOIDINAE. 



Diagnosis; Head with four suckers; segments distinct; genlliil 

 pores in median ventral line. Tyi>e and only genus; Mesoc<.-s- 

 toides Vaillant, 1S63. 



a«nu* MKS0CI::STOII>£S Vaillant, 1»«S. 



USSo, l^tychophysa Hamann.) 



Diagnosis; Char, of subfamily; a single egg sac present. 

 Type species; M. ambiguus Valllajit, IStiS. 



Kailliett (1893, p. 313) places Tolouio's Taenia im 

 butiformis of wild geese in this genus as a species in 

 quirenda, but 1 can not recognize I'olonio's description 

 and figure as supporting this view (vide p. 58). This 

 genus would, therefore, according to my view, be 

 witliiMil ;iny represtiitalivc ;iinong the parasites of do 



