BrpuioGRAPHY. 
1. Caukrns,G.N. Lymphosporidium truttae n.g.n. sp. The Cause 
of a recent epidemic among Brook-Trout, Salvelinus 
fontinalis. Zool., Anz. 23, 1900, pp. 513-520, 6 text figs. 
2. Lown. Fishes of Norfolk, in Trans. Norfolk and Norwich 
Naturalists’ Society, 1874, p. 39. 
3. McInrosw. Diseases of Fishes, in 3rd Ann. Rep. Scott. Fish. 
Board for 1884, pp. 66-67, and 4th do., for 1885, pp. 214-215. 
4. SanpEMAN, G. On the multiple Tumours in Plaice and Flounders. 
11th Ann. Rep. Scott. Fish. Board for 1892, pp. 391-392, 
pl. 17. 
EXPLANATION OF PLATE. 
All figures refer to Lymphocystis johnstonet. 
Figs. 5-6 were drawn with the aid of the camera. 
The stains mostly used were Iron Haematoxylin 
followed by Orange or Hosin, Kleinenberg’s Haema- 
toxylin and Fuchsin, and various — bacteriological 
methods. 
Fig 1. Head of the flounder, shewing the parasites 
(par.) beneath the skin, but projecting ex- 
ternally. At tum. are three huge aggregations 
of cysts (not proliferations, see text). x 
Drawn by J. Johnstone. 
Fig. 2. View of one of the coils of the intestine, with 
? 
attaching mesentery (mes.) and blood-vessels 
(blv.). Par. ave the numerous parasites. x 1. 
