The more posterior and ventral of two forebrain neuromeres, the other being the telencephalon; major derivatives are the eye cups, the brain pretectal region, the thalamus, hypothalamus, and epithalamus (including the habenula and epiphysis).
hog:0000007 third ventriclehog:0000009 diencephalon meningeshog:0000178 epithalamushog:0000179 hypothalamushog:0000223 optic stalkhog:0000245 infundibulumhog:0000596 lateral wall diencephalonhog:0000653 diencephalon glandhog:0000657 thalamushog:0000771 roof plate diencephalonhog:0000782 floor plate diencephalonhog:0000798 neural crest diencephalonhog:0001547 lamina terminalishog:0001585 lateral mamillary nucleushog:0001587 medial mamillary nucleusBFO:0000050 part of
hog:0000383
tao:0000101tao:0000574