Fig. 1From: Biology and distribution of hemichordates (Enteropneusta) with emphasis on Harrimaniidae and description of Protoglossus bocki sp. nov. from Scandinavia Protoglossus bocki n.sp. Creeping individual where the proboscis shape with dorsal groove, collar colouration, dorsal ridge and gill openings is visible. Photograph: Christopher ReisborgBack to article page