286 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



Several small distomids were sent me by Mr. A Scott, 

 who found them when dissecting a garfish — they certainly 

 belong to the above species. The worm is easily 

 recognised by the star- shaped vitelline glands. It is 

 about 1*5 mm. in length, almost colourless and extremely 

 fragile. Even the pressure of the cover glass is sometimes 

 enough to rupture the preserved specimen. The figure 

 (fig. 16) is constructed from a specimen preserved in 

 formalin. Levinsen found his specimens in the intestine 

 of Cottus scorpio. Hitherto all Cotti dissected from the 

 Irish Sea have failed to provide this distome. 



Distomum, sp. 



From Labrus mixtus, Morecambe Bay, 1906. 

 Three small distomids from the intestine of a wrasse 

 do not appear to answer to any published descriptions I 

 have seen. The specimens were, however, only seen after 

 preservation in formalin, and it frequently happens that 

 the details of structure necessary for certain diagnosis can 

 only be made out in living distomids. Fig. 17 represents 

 all that can be seen by staining the specimens to which I 

 refer. The measurements of the worm are : — 

 Length : 1*2 mm. 

 Breadth : 0'5 mm. 

 Diameter of oral sucker : 0*11 mm. 

 Diameter of ventral sucker : 0*24 mm. 

 Diameters of ova : 70/x x 50 /m. 

 The ventral sucker is thus about twice the diameter 

 of the oral one. No details of the oesophagus or intestine 

 could be made out. The vitellaria are represented by a 

 comparatively small number of rather large, irregularly- 

 shaped glands distributed throughout the body. No trace 

 of ovary could be made out with certainty, so it is not 

 represented in the figure. The testes are two large oval 



