38 DB. T. S. COBBOLD's synopsis of the DISTOMIDiE. 



Such is the general similarity in the structure and habits of this worm to the 

 form I have noticed under the generic title of Kcellikeria, that at first sight 

 we might be tempted to associate them. The absence, however, of a ventral 

 sucker (without taking into account its assumed androgynous character) 

 points to a closer aUiance with the Monostomes, from which also it is, 

 nevertheless, evidently distinct. I strongly suspect the sexes will be found 

 separate. 



Corpus inerrae, reniforme, lobatum ; aliquando antrorsum attenuatum, 

 apice incrassatum, clavatum, retrorsum subito increscens. Os termi- 

 nale, acetabuliforme. Acetabulum ventrale nullum. Androgynum (?), 

 apertura genitali infra os. Oviparum, ovulis non operculatis. Avium 

 incola, et in cavo branchiorum piscium marinarum geminatim in 

 foUiculis inclusa. 



1. Wedlia bipartita, Cobbold. 



Monostoma bipartitum, Wedl, Wiener Akademie-Berichte, Bd. xvi. p. 38 ; 



Wagener, Archiv fiir Natvug. 1858, Bd. i. p. 252 ; Diesing, Revis. p. 23. 

 Hab. Found by Wedl and Wagener in cysts connected with the gills and 



pharyngeal mucous membrane of Thynnus vulgaris. 



2. Wedlia Faba, Cobbold. 



Monostoma Faba, Bremser, Dujardiu, Creplin, Diesing. 



M. bijugum, Miescher, Siebold. 



Globularia, Rolando. 



Hab. Found by Miescher in Fringilla Spinus, and by Inhof in F. 



domestica ; by Schinz in F. canaria ; by Rolando in Sturnus vulgaris ; 



by S. T. Soemmering in Parus major ; by Bremser and Diesing in 



Sylvia sibilatrix ; by Creplin in S. Trochilus ; by Fischer in Motacilla 



Boarula. 



Genus 10. Monostoma. {Zeder.) 

 A. In corpore mammalium. 



1. Monostoma lentis, Nordmarm. 



M. lentis, Nordmann (non descript.) ; Gescheidt ; Diesing (species in- 



quirendae) ; Kiichenmeister. 

 Distoma Amnion 1 

 Hab. Found by Jiinken and Nordmann in the lens of the human eye. 



2. Monostoma Squammula, Diesing. 

 M. Squammula, Diesing. 



Distoma Squammula, Rudolphi, Bremser, Dujardin. 

 Hab. Found by Dujardin and Bremser in the intestines of Mustela 

 putorius. 



3. Monostoma Hippocrepis, Diesing. 

 M. Hippocrepis, Diesing, Revis. p. 22. 



Hab. Found by Natterer in Brazil in the large intestines of Hydrochoerus 

 Capyhara. 



