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Fig. 2 | Zoological Letters

Fig. 2

From: Comparative morphology of ultimate and walking legs in the centipede Lithobius forficatus (Myriapoda) with functional implications

Fig. 2

External morphology of walking and ultimate leg. a Overview of ultimate leg, from medial. Scale bar 500 μm. b Overview of walking leg 10, from medial. Note that only the walking leg features an accessory spine on the claw (asp, compare e). Inset shows the dorsally incomplete tarsal articulation of walking legs (compare de). Scale bar 500 μm. c Ultimate leg tarsus 2 from lateral. The arrowhead indicates the complete tarsal articulation. Scale bar 100 μm. d Ultimate leg tarsus 2 from medial. Pores of the telopodal organs (tep) cover the entire medial surface. Note the four sensilla mesotrichodea II interspersed between the telopodal gland pores (circles). The arrowhead indicates the complete tarsal articulation (compare c, d). Scale bar 100 μm. e Tarsi of walking leg 10, from medial. The arrowhead indicates the incomplete articulation of the tarsi. Arrows point to s. macrotrichodea II that are only present on the ventral side of walking leg tarsus 1 (compare Figs. 5 and 6h). Scale bar 50 μm. Abbreviations: asp accessory spine, cl claw, cx coxa, fe femur, pfe prefemur, ta tarsus, tep telopodal gland pores, ti tibia, tr trochanter

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