30 DR. T. S. COBBOLD's SYNOPSIS OF THE DISTOMIDJ.. 



7S. DiSTOMA ATOMON, Rudolphi. 



D. atomon, Rudolphi, Dujardin, Diesing, Cobl)old (Linn. Trans, loc. ait.). 



Fasciola atomon, Rudolphi. 



Hab. Found by Rudolphi in the stomach of Platessa fiesus. 



"Jd. DiSTOMA LUTEUM (Wagencr), Status juvenilis. — Corpus ovatum, 

 marginibus perparce papillis tectum, retrorsum attenuatum. Colluin 

 nullum. Acetabulum ore duplo majus, subcentrale, apertura circulari. 

 Longit. j^ uuc. 



D. luteum, La Valette, Pagenstecher, Wagener. 



Heterostomum ovatum, Diesing. 



In statu larvae. 



Cercaricsum ovatum, Diesing, Revis. der Cere. p. 43. 



Hab. Wagener states that he has seen a mature specimen in the intes- 

 tines of Esox lucius. Found in the young and larval state by Baer, 

 La Valette, Pagenstecher, and Wagener in Paludina vivipara. 



80. DiSTOMA HOMEOSTOMUM, Diesiug. 



D. Triglcs Pini, Bellingham. 



D. homeostomum, Diesing, Revis. p. 39. 



Hab. Found by Bellingham in the stomach of Trigla cuculus. 



E. In cor pore animalmm evertehratorum. 



\. DiSTOMA isosTOMUM, Rudolphi. 

 D. isostomum, Rudolphi, Creplin, Dujardin, Diesing. 

 D. cirrigerum, Baer? 



Hab. Found by Cams, Otto, Creplin, and Baer in various viscera and 

 tissues oi Astacus fiuviatilis . 



2. DiSTOMA KoLiKERii, Cobbold. 

 jD. PelagicB, Kolliker, Diesing. 



Hab. Found by Krohn and Kolliker attached to the lips of Argonaula 

 Argo, and in the stomach and tissues oi Pelugia noctiluca. 



3. DiSTOMA MEGACOTYLE, Dicsing. 



D. Velellas, Filippi. 



Hab. Found by Filippi in the stomach of Velella spirans. 



4. DiSTOMA GENICULATUM, Dicsiug. 



£). Physophoree, Filippi. 



Hab. Found by Filippi in the stomach of Physophoru tetrasticha in 

 January. 



Grenus 4. Btlhakzia (Cobbold). 



Sexus discretus. Corpus maris lineare, retrorsum in canalem gynacopho- 

 rM?raproductum. Os acetabuliforme, subtriangulare. Acetabiilum\evitv&\Q 

 prorainens, subpedicellatum. Apertura genitalis inter acetabulum et 

 initium canalis gynajcophori. Corpus femincB filiforme, gracile. Aper- 

 tura genitalis ad acetabuli marginem posteriorem. 



