Figs 15–20 in Structure and distribution of sensilla coeloconica on the maxillipedes of Chilopoda

Figs 15–20. Lithobius forficatus, utrastructure of sensilla coeloconica type I and II. 15. Longitudinal section of a type I sensillum coeloconicum with a terminal pore (TP). CU = cuticle, P = sensory peg, PC = pore channel. Scale bar: 1 m. 16. Oblique section of the base of type II sensillum coeloconicum with cuticular cap (CH), surrounding pore channel (PC). CU = cuticle. P = sensory peg. Scale bar: 1 m. 17. Transverse section of tip of a sensillum with dendritic outer segments (DO). CU = cuticle, DS = dendritic sheath. Scale bar: 0.5 m. 18. Transverse section of type II sensillum with small (DO2) and two thick dendritic outer segments with tubular bodies (TB). DS = dendritic sheath, S2 = projections of the trichogen cell. Scale bar: 0.5 m. 19. Transverse section of type II sensillum with small dendritic outer segments (DO2). Asterisks mark the proximal projections of the cuticular cap. DS = dendritic sheath, S2 = trichogen cell. Scale bar: 0.5 m. 20. Transverse section of type I sensillum with thick (DO1) and small (DO2) dendritic outer segments filled with microtubules. DS = dendritic sheath, S2 = trichogen cell. Scale bar: 0.5 m.