Fig. 11From: Biology and distribution of hemichordates (Enteropneusta) with emphasis on Harrimaniidae and description of Protoglossus bocki sp. nov. from Scandinavia Protoglossus bocki n.sp. Longitudinal section through the anterior part of an individual. Cg collar groove, Gl glomerulus, Lpm longitudinal proboscis musculature, M mouth, Mes mesocoel, Op operculum, Pc pericardium, Ph pharynx, Pro protocoel, Ps proboscis skeletonBack to article page