140 P MANSON ON MICRO-FILARI^. 



examined at present ; but on the 27tli of June I satisfied myself 

 that the fluke was new to science, and accordingly I propose to call 

 it Distoma Ringeri, after the discoverer. Though mutilated, the 

 oral sucker was well shown, as also were traces of an organ which 

 I regarded as the remains of the ventral acetabulum. When 

 flattened on a glass-slide, the capsules of the vitellarium were well 

 seen, and occupied fully four-fifths of the body, lying deep under the 

 dermal surface. The worm reminds me very much of the fluke 

 Distoma compactum which, many years ago, I detected in the lungs 

 of an Indian Ichneumon, but it is much larger and e\'idently a 

 distinct species. 



" T. S. COBBOLD." 



DESCEIPTION OF PLATE X. 



Fig. 1. — Outline of a fluke obtained from the lung of a Portuguese. (Dis- 

 toma Bingeri, Cobb.) Nat. size. 



Fig. 2. — Eggs of a fluke from the lung of a Portuguese. X 350 diameters. 

 a, h with the operculum detached ; c with the contained embryo. 



Fig. 3. — Five separate views of ova taken from the sputum of a Chinese; 

 a, h and c with their opercula detached ; d and e with the shells 

 ruptured by the covering glass. X 350 diameters. 



