PLATE IT. 



Fig. 37. Tetra/rhynchus erinaceus, Van Beneden. 



A. Cyst in muscle of Sebastes marinus. 



B. ,, ,, larva removed from cyst. 



C. ,, ,, a larva partly extended. Nat. size. 



D. ,, ,, ,, sketch of hooks on one of the horns. 



38. Hump-backed cod, male, 87 cm. long. Cyst found in kidney. 

 Enlarged. 



39. Tusk {Brosmius brosme). Tubes of diseased kidney. Enlarged. 



40. Hump-backed cod, female, 54 cm. long. Cyst found in kidney. Enlarged. 



42 



43. Zoarces viviparus, section of infected swollen muscle. Enlarged. 



44. Brosmius brosme. Tumour, about natural size. 



45. Cod (Gadus callarias), fillet, with holes in muscle. Reduced. 



46. 'Brosmius brosme, infected kidney. Tubules with spore-like bodies 

 (? parasite) attached. 



47. Zoarces viviparus. Part of infected muscle, enlarged further than in 

 Fig. 43. 



48. Cod, fillet. Tumour. Infected muscle shown shaded. 



49. Cod, diseased kidney. Tubers on tubes of kidney. The largest (x.) 

 measured 1"7 x 1'5 mm. Enlarged. 



50. Brosmius brosme Tubules of diseased kidney with spore-like bodies 

 sp. (? parasite) attached. Enlarged. 



51. Ling (Mohia molva). Tumours in peritineum. Reduced. 



