DE, T. S. COBBOLD's STKOPSIsJ OF THE DISTOMIB^. 37 



4. EcHiNosTOMA FALLAX, Dujardiii. 

 Distoinafallax, Rudolphi, Dujardin, Uiesing. 



Hab. Found by Rudolphi in the stomach of Uranoscopus scaber. 



5. EcHiNOSTOMA scABRUM, Dujardin. 



Distoma scabrum, Zeder, Rudolphi, Dujardin, Bellingham, Diesing. 

 Fasciola scabra, O. F. Miiller. 



Hab. Found by Rudolphi in the intestines of Lota molva ; by Miiller in 

 the stomach of Gadus Morrhua. 



6. EcHiNOSTOMA CRiSTATUM, Dujardiu. 

 Distoma cristatum, Rudolphi, Dujardin, Diesing. 



Hab. Found by Rudolphi in the stomach of Stromaleus Fiatola. 



7. EcHiNOSTOMA DUJARDINII, Cobbold. 



Distomum Histrix, Dujai-din, Diesing. 



Hab. Discovered by Dujardin enclosed in cysts attached to the gills aud 

 in the pharyngeal mucus of Pleuronectes maximus; also in P. Platessa. 



Genus 8. Gasterostoma. (Von Siebold.) 



1. Gasterostoma fimbriatum, Siebold. 

 G.fimbriatum, Siebold, Wagener, Diesing, Revis. p. 57. 



Hab. Found by Siebold in the intestines of Perca jiuviatilis and Lucio- 

 perca Sandra ; by Wagener in Esox Lucius. 



2. Gasterostoma minimum, Wagener. 

 G. minimum, Wagener. 



Rhipidocotyle minima, Diesing, Revis. p. 57- 



Hab. Found by Wagener in the duodenum of Trigla microlepidota in 

 October. 



3. Gasterostoma gracilescens, Wagener. 

 G. gracilesceris, Wagener. 



Rhipidocotyle gracilescens, Diesing, Revis. p. 57. 



Distoma gracilescens, Rudolphi, Bremser, Dujardin, Diesing, Cobbold 

 (Linn. Trans, vol. xxii. pt. 3, p. 161, tab. 32. figs. 33, 34). 



Hab. Found by Rudolphi, Wagener, and myself, in great abundance in 

 the intestines of Lophius piscatorius. Dr. Wagener represents the 

 ventral acetabulum as much smaller than the oral sucker ; but I did 

 not find this to be the case. His other details throw much light 

 upon its anatomy. 



4. Gasterostoma armatum, Molin. 



G. armatum, Molin ; Diesing, Nacht. und Verbess. zur Revis. der My- 



zelm. p. 18. 

 Hab. Found by Molin in the intestines of Conger Conger. 



Genus 9. Wedlia. (Cobhohl.) 



Dr. Guido Wagener has described, in Troschel's ' Archiv fiir Natur- 

 geschichte,' a remarkable form of Trematodc previously discovered by Wcdl. 



