C 97 ] 



REPORT 



ON THE 



TREMATODE PARASITES 



FROM THE 



MARINE FISHES OF CEYLON. 



BY 



MAX LUHE, Ph.D., 



KONIGSBERG IN PREUSSEN. 



[With TWO PLATES.] 



By the kindness of Mr. A. E. Shipley,* to whom I wish to express here my warmest 

 thanks, I have had the opportunity of studying a very interesting collection of 

 Trematodes, mostly parasites of fishes, obtained from Ceylon by Professor Herdman 

 and Mr. Horxell. The collection contained seven different species, all of which are 

 new to science. They are described below. 



One of the seven species belongs to the ectoparasitic Trematoda or Heterocotylea. 

 Two are larval forms of Distomids', one of which, however, is a well-distinguished 

 species of the genus Stephanochasmus, Looss, the systematic position of the other larva 

 being still doubtful. Of the four adult Distomids contained in the collection, three 

 belong to new genera. 



Epibdella (Benedenia) macrocolpa, n. sp. Plate I., figs. 1 to 3. 



From the skin of Bhinoptera javanica, Mull, and Hexle. 



1. Kalpitiya. Three specimens in bottle No. 36 (the type specimens). 



'2. Dutch Bay. Two specimens in bottle No. 2. 



Body oval, flattened; length 9 millims. to 10 millims., breadth 5 millims. to 

 7 millims. The two anterior suckers \\ell developed, circular, with a diameter of 

 about I milliin., connected together by a thin membranous continuation of the 



* These Trematodes were sent to Mr. Shipley with the other parasites (see preceding Report) and 

 were by him sent on to Dr. Luhe for description. W. A. Herdman. 



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