Dorsotemporal retinal ganglion cell axons of goldfish are located in the dorsal rather than ventral optic tract.
Cobaltous-lysine was injected into the eyes of goldfish after a slit was made in the temporal retina. Cobalt-filled optic fibers were found in the dorsal optic tract and tracing them to their destinations revealed that they terminated rostrally in the peripheral edges of both the dorsal and ventral aspects of the optic tectum. Hence, axons from ganglion cells in the dorsotemporal retina are in the dorsal optic brachium rather than in the ventral optic brachium as was previously assumed.
D000818:Animals; D001931:Brain Mapping; D003530:Cyprinidae / Q000033:anatomy & histology*; D006054:Goldfish / Q000033:anatomy & histology*; D009475:Neurons, Afferent / Q000166:cytology; D012160:Retina / Q000166:cytology*; D013477:Superior Colliculi / Q000166:cytology*; D014795:Visual Pathways / Q000166:cytology*