428 Dr. 0'Bi*yen Bellinghani on Irish Entozoa. 



25. Distoma. . Rectum of tippet grebe {Podiceps cristatus). 

 26. *. Stomach of red gurnard {Trigla Pini). 



{Intestine of haddock (Gadus ^glefinus). 

 Intestine of whiting {Merlangus vulgaris). 

 Intestine of coal-fish {Merlangus Carbonarius). 

 28. X Intestine of turbot (Pleuronectes maximus). 



particulars from it. It is somewhat more than half an inch in length, 

 and 2 lines in width at the widest part (immediately behind the 

 ventral pore) ; it continues to be nearly of the same diameter, and 

 then gradually diminishes towards the caudal extremity. The head 

 is distinct and reniform, larger in proportion than that of the Distoma 

 echinatum, edged with short spines placed at regular intervals. The 

 neck and anterior part of the body are armed with very numerous 

 minute spines, in which it also differs from the D. echinatum. After 

 the animals had been immersed in spirits of wine, the neck became 

 curved, the convexity upon the dorsal surface. The pores are orbi- 

 cular ; the anterior small, the ventral much larger ; they are seated 

 near each other. 



* This species, which I found in the stomach of the common red 

 gurnard (Trigla Pini), does not appear to have been previously de- 

 scribed. It belongs to the division in which the body is cylindrical, 

 and to the subdivision in which the pores are of equal size. It mea- 

 sures about half a line in length ; colour white at each extremity, 

 yellowish red about the centre ; both pores are orbicular, inferior, 

 and seated near one another, the ventral being prominent. It lived 

 for a short time in water after being removed from the animal. After 

 remaining for a short time in spirits of wine, the pores were seen to 

 be of equal size ; but in this as in other species of Distoma, M'hen 

 the animal is alive it dilates and contracts the pores constantly, so 

 that at one time the anterior pore is the larger, c^t another the 

 ventral is the larger. 



t This species of Distoma, which inhabits the intestinal canal of 

 the haddock, the whiting and the coal-fish (Merlangus Carbonarius) , 

 belongs to the division in which the body is flat, and to the subdi- 

 vision in M'hich the pores are of unequal size, the anterior being the 

 larger. The longest specimen measures 2 lines in length, the smallest 

 1 line ; colour yellowish in centre, white in other parts; dorsal sur- 

 face convex, ventral surface flat ; more attenuated anteriorly than 

 posteriorly, extremities obtuse. The anterior pore is orbicular, some- 

 times elliptical, always double the size of the ventral ; ventral pore 

 orbicular, situated in the anterior half of the body, but near the 

 centre. 



X This species does not appear to have been previously described ; 

 it belongs to the same division and subdivision as the preceding, the 

 body being flat and the pores unequal. It is about a line in length, 

 flattened and linear, of equal diameter in its whole length, not atte- 

 nuated at the extremities. Both pores are orbicular ; anterior more 



