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Fig. 1 | Frontiers in Zoology

Fig. 1

From: The antennal scape organ of Scutigera coleoptrata (Myriapoda) and a new type of arthropod tip-pore sensilla integrating scolopidial components

Fig. 1

External morphology of the basal part of the antenna exhibiting the scape organ of Scutigera coleoptrata. A Habitus of S. coleoptrata (modified after [86]). B Head and basal antennal region of S. coleoptrata in dorsal view. Courtesy by Hans Pohl. C Dorsal face of antennal base in living state showing the fused scape and adjacent multi-annulated flagellum. The scape organ is present on the bulged area. D Scape organ in detailed view, magnified from C. Note that the pore is plugged by a white mass (arrowhead). E Dorsal face of antennal base in ethanol-fixed state. Note the coloration correlated to hardness degrees of the cuticle. F Dorsal face of the antennal base (left antenna, lateral side of the animal is to the left) comprising the two basal antennomeres and adjacent flagellomeres. The second (distal) antennomere bears the scape organ. G Ventrolateral face of the antennal base (left antenna). None of the antennomeres display any obvious cuticular microsculptures, trichomes or sensilla. an, antenna; aos, antero-ommatidial suture; e, compound eye; fl, flagellum; hs, head shield; mx, maxillipede (forcipule); so, scape organ; trs, trichoid sensillum; 1, first (proximal) antennomere; 2s (distal) antennomere (fused scape)

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