DESCRIPTION OF FIGURES 5 TO 7 

 Cutaneous papilbnuu of the sUpper>- dirk, Iridic bivittata. 



Fic. 5. — GroM appearance o( the tumors. The two fish at the trunk musculature which is separated from the epithelial 



tbc top of the pbolofrnph, and the one at the bottom, bear tumor by a condensed, but otherwise intact connective tissue. 



vralio>hleral tumors at the junction of the middle and Note the cross sections of two scales (arrows) embedded in 



caudal thirds of the body. In the fourth fish the papilloma is the tumor. Ma^- X 30. 



*em at the hue of the pectoral fin. Fic. 7. — Detail of the tumor showing the finely granular 



Fk. 6. — Low power appearance of a papilloma. The cytoplasm and small nuclei of the epithelial cells. The sup- 



tlOWMr b shown in the right half of the figure; on the left is porting connective tissues is scant in amount. Mag. X 500 



716 



