Structural patterns of the optic tectum in Japanese snakes of the family Colubridae, in relation to habit.
D000818:Animals; D003624:Darkness; D004805:Ependyma / Q000033:anatomy & histology; D006184:Habits; D006801:Humans; D008027:Light; D012911:Snakes / Q000033:anatomy & histology*; D013045:Species Specificity; D013477:Superior Colliculi / Q000033:anatomy & histology*