Research Article

Comparative Histomorphological and Histochemical Studies on the Oesophagus of Nile Tilapia Oreochromis niloticus and African Catfish Clarias gariepinus

Figure 1

Photographs showing the fishes used in the study; Nile tilapia, Oreochromis niloticus, (a) and African catfish, Clarias gariepinus (b).
(a)
(b)