DESCRIPTION OF FIGURES 29 TO 3.^ 



"OMcoautt" of the angelftah. Ckaetodipirrus faber, and on the file fish, Atutcra sckoepfi. 



Pk. 29. — Ortconui of tbe first vrntrml (haemal) spine of periods of arrested growth, probably seasonal. Mag. X 2. 



a0 aafleUUh. The tumor b marked by an asterisk. One-half Fic. J2. — Osteoma of a bone (cleithrum) of the shoulder 



natural si/e girdle in an angelfish. The specimen was found in a Florida 



Flo. iO.— Another exampk of osteoma of the first haemal Indian kitchen-midden. 



tfkam of an angelfiah. Fic. iS. — Osteoma of the first interneural spine (just an- 



Pic. 31.— Longitudinal section through the osteoma shown tenor to the dorsal fin) of a file fish. One-half natural size. 

 la the previous ftgufv. Note the "annular" rings indicating 



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