52 



FISHES. 



tem. 3. A neural spine (ns), which crowns the neura- 

 pophyses, or is interposed between their tips. 4. A hcemal 

 spine (hs), having the same relation to the heemapophyses. 



^s- 



Fig. 22. — Side and Front view of Fish-vertebra. 



5. Two pleurapophyses or floating ribs, suspended from, or 

 from the base of, the parapophyses. 6. In most fishes the 

 neural arches are connected together by articular or obUque 

 processes, zygapophyses (za), which are developed from the base 

 of each neurapophysis. 



