Fig. 12From: 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 collar and posterior part of the proboscis. Scale bar 100 μm. Photograph: Sixten Bock. C collar, Cg collar groove, Gl glomerulus, Lpm longitudinal proboscis musculature, M mouth, Mes mesocoel, Nch neurochord, Op operculum, Pc pericardium, Ps proboscis skeleton, St stomochordBack to article page