Fig. 1From: Comparative and functional analysis of the digital mucus glands and secretions of tree frogsMucus glands in a digital pad of Hyla cinerea. a 3D view of the whole digital tip. Only the left half of the approximately bi-laterally symmetric dorsal mucus glands is shown. b Frontal, c lateral, and d ventral view of the glands. The dotted lines indicate the proximal border of gland segmentation. x, y, z: longitudinal, lateral, and vertical spatial coordinatesBack to article page