The Biology of the African Bonytongue Heterotis niloticus (Cuvier, 1829) from the Lower Niger River at Agenebode in Edo State, Nigeria

Figure 7

The detached GIT of H. niloticus. pg, pouch of gills; O, oesophagus; G, gizzard-like stomach; pc, pyloric ceca; I, intestine; LI, large intestine, C, cloaca.