A pattern of animal colouration, existing as a form of camouflage, characterised by darker pigmentation of the upper side and lighter of the underside.
hernandiaceous
hernandiaceous
adj
(botany) Belonging to the Hernandiaceae.
pseudobranchia
pseudobranchia
noun
(marine biology) A small patch of gill-like filaments on the inner surface of the opercle near the junction of the preopercle.