92 Part III. — Twenty-sixth Annual Report. 



PLATE VI. 



Fig. 1. Echiiwrhynchus proteus with their heads embedded in Eel 



intestine, - - slightly enlarged. 



Fig. 2. Ancistrocephalus microcephalics (Strobile), - slightly enlarged. 



Fig. 3. Tetrarhynchus megacephalus, (Strobile), - - slightly enlarged. 



Fig. 4. Dinobothrium septaria, van Beneden, (Strobile), - x 2 



Fig. 5. Lepeophtheirus pectoralis, adhering to pectoral tins of flat fish,- 

 Fig. 6. (?) Prosthecosacter in viscera of Porpoise, - - - x 2 



Fig. 7. Specimens of the same shown separately, - - - x 2 



Fig. 8. Echinorhynchus acus, with their heads embedded in intestine of 



Coal-fish, - - - - - • - x 2 



PLATE VII 



Diphyllohothrium stemmacephalum, Cobbold, - about the natural size. 

 Diplobothrium simile, van Beneden, • slightly enlarged. 



Distomum cestoides. van Beneden, - about twice natural size. 



The same, young examples, - about twice natural size. 



(?) The same, young examples from cysts on the stomach of a 



Witch Sole, ..... twice natural size. 



One of the cysts containing young Distomides, - twice natural size. 



Three-spined Stickleback infested with Cestode worms, - natural size. 

 A Stickleback, showing the worms in situ, • - natural size. 



Fig. 



1 



Fig. 



2. 



Fig. 



i 



Fig. 



4 



Fig. 



5. 



Fig. 



6 



F'g. 



7 



Fig. 



8, 



