(Pyruvate) 



Condensing enzyme 



(Oxalacetate) 



Malic 

 dehydrogenase 



(Malate) 



X. 



s> 



(Fumarate)^"-* 



/ Succinoxidase 



Figure 5. Known tricarboxylic acid cycle in teleosts and 

 elasmobranchs. 



