Polydrepanum sp. 1

Golovatch, Sergei I., Aswathy, Mathilakath Dasan, Bhagirathan, Usha & Sudhikumar, Ambalaparambil Vasu, 2021, Review of the millipede tribe Polydrepanini, with the description of a new species from Kerala state, southern India (Diplopoda, Polydesmida, Paradoxosomatidae, Alogolykinae), Zootaxa 5068 (4), pp. 485-516 : 494

Polydrepanum sp. 1

Figs 21, 22

Polydrepanum sp. nov.— Bano & Murthy, 1997: 160, 161, fig. 10 (D). India, Karnataka.

Polydrepanum sp. 1 — Sankaran & Sebastian, 2018: 171, fig. 6D (D).

Remarks. An unnamed species from an unspecified locality in Karnataka state, India, the left gonopod of which has been presented in a crude sketch by Bano and Murthy (1997), reproduced here in Figs 21 and 22 . This species, like both following ones, is anyway to be neglected, being unnamed and based on material of unknown provenance and whereabouts, shows a clearly torsate gonofemorite, a basal loop of the solenomere, and a distinctly coiled and slender distal half of the solenophore. This condition resembles that observed in both P. tamilum and P. horridum (cf. Figs 9–12 , 17–20 and 21, 22 ) and thus may prove to be their potential congener (see also below).

Figures

FIGURES 21, 22. Polydrepanum sp. 1. Entire left gonopod, lateral and mesal views, respectively. After Bano and Murthy (1997). Scale bar: 1.0 mm.

FIGURES 9–12. Polydrepanum horridum Golovatch, 1984. Right gonopod, lateral, dorsal, mesal and ventral views, respectively.After Golovatch (1984). Abbreviations: a, apicolateral spine; k, basal loop of solenomere; lo, mesal lobe; sl, solenomere; sph, solenophore. Scale bar: 0.4 mm.

FIGURES 16–20. Polydrepanum tamilum Carl, 1932. 16. Male leg 2, lateral view. 17. Entire left gonopod, mesal view. 18. Distal half of left gonopod, lateral view. 19. Entire right gonopod, mesal view. 20. Distal half of right gonopod, sublateral view. 16–18: after Carl (1932); 19, 20: after Jeekel (1980b). Abbreviations: a and b, dorsal distofemoral processes; ad, adenostyle; lo, lateral protecting lobe/shield; k, basal loop of solenomere; sl, solenomere; sph, solenophore. Drawn not to scale.