SEA-FISHERIES LABORATORY. 329 



were felt underneath the skin. Two of these nodules 

 were situated close to the lateral line on the ocular side of 

 the fish. Each was a little rounded mass about 3*5 mm. 

 in diameter and about one mm. above the general surface 

 of the skin. Just behind the anus was another tumour 

 which, however, was rather larger and more irregular in 

 shape than those on the side of the fish. It was situated 

 on the posterior and lateral lips of the anus. 



Fig. 9, jdI. XVI., represents a section of the latter 

 tumour in a longitudinal plane. The skin over the structure 

 is quite normal. Directly underneath the skin is a great 

 number of egg-like structures, each from OT to 016 mm. 

 in diameter. Each (fig. 10) is surrounded by a thick, 

 apparently structureless, capsule. Within this the cell 

 protoplasm is finely granular, and stains densely. Hound 

 the periphery of this cell (for the whole structure is 

 obviously a single cell) are a number of inclusions, 

 consisting of densely staining substance of apparently 

 quite irregular form. The cell substance is usually 

 contracted away from the capsule at various points. The 

 nucleus is large, and is bounded by a kind of shell — 

 not a membrane, but a thick layer, which in section 

 presents a kind of scalloped appearance. The nucleus is 

 often vacuolated. Within it is a single large, densely 

 staining nucleolus. 



Explanation of the Plate. 



Plate XVI. 



Fig. 1. — Anthobothrium auriculatum. Section of a proglottis, x 70. 

 ., 2. — Do. do. i tie Boolex. x 17. 



,, 3. — Fungus in kidney of plaice. Section of the kidney. 



x about 100. 

 ,, 4. — Fungus in Plaice, germinating spore, x 600. 

 ,, 5-6. — Do. conidia. x 600. 



,,7-8.— Do. resting spores. x600. 



,, 9. — Tumour from dab. Section, x 24. 

 ,, 10.— One body from tbe tumour, x 220. 



