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. 2026 Jan 22;1267:51–76. doi: 10.3897/zookeys.1267.176622

Figure 5.

Figure 5.

Variation in relative rostral length (rcl) and telson morphology in eight taxa of the genera Troglocaris and Spelaeocaris. Number of measured females/males: T. anophthalmus aggr. (= T. anophthalmus spp. + T. planinensis) – 315/165; T. bosnica – 12/1; S. neglecta – 8/2; S. pretneri – 25/7; S. prasence – 15/6; S. kapelana – 4/1; S. hercegovinensis – 17/11 (dataset from Jugovic et al. 2011); Spelaeocaris electa sp. nov. – 8/2 (present study). Telson sketches adapted and redrawn from: T. anophthalmus aggr. (Jugovic et al. 2019); T. bosnica, S. neglecta, S. prasence (Sket and Zakšek 2009); S. pretneri (Matjašič 1956); S. hercegovinensis (Babić 1922). Note the slightly concave posterior margin of the telson in the two sister species: S. hercegovinensis and Spelaeocaris electa sp. nov. (indicated by short black arrow), in contrast to the convex distal margin in all other species (sketch for S. kapelana is not provided but its distal margin is convex (see Sket and Zakšek 2009)). Thin arrows with numbers 1, 2 and 3 on the upper left sketch denote dorsomarginal (1–3) spiniform setae, of which the pair 3 is dorsomarginal-terminal. Abbreviations: RL – rostral length, CL – carapace length.