144 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



Fig. 4. Cutaneous papilloma from the Halibut. Part 

 of one of the papillae represented in section 

 in fig. 5. Richly vascular connective tissue : 

 a capillary knot is cut through. Vessels 

 containing finely fibrillar inclusions. 



Fig. 5. Cutaneous papilloma from the Halibut. 

 Section of the external part of the growth. 



Fig. 6. Fibro-sarcoma from the Cod. The more 

 fibrous part of the tumour, but containing 

 also numerous small round cells. 



Fig. 7. The same. Irregular stellate cells. 



Fig. 8. The same. Small round cells, some showing 

 spindle forming tendency. Relatively little 

 fibrous tissue. 



Plate IV, figs. 1 and 2. 



Fig. 1. Ray with ectasia of the sensory canals. 

 Ventral view of head. The canals are cut open 

 on the left, but are left untouched on the right 

 side. The intra-cystic growths have been 

 removed on the left side. 



Fig. 2. Dorsal view of the head. The canals are cut 

 open, and the intra-cystic growths are present 

 in situ. 



(Photos, by Mr. A. Scott.) 



Plate V, figs. 1 and 2. 



Fig. 1. Ray with ectasia of the sensory canals. 

 Photograph of two intra-cystic growths dis- 

 sected out from the canals cut open in fig. 1, 

 PI. IV. Natural size. 



Fig. 2. Papillomatous growths from the snout of a 

 Halibut ; about one-half natural size. 



(Photos, by Mr. A. Scott/ 



