Polydrepanum sp. 3

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 : 495-496

Polydrepanum sp. 3

(= Delarthrum sp. )

Figs 25, 26

Polydrepanum sp. nov.— Bano & Murthy, 1997: 162, fig. 12 (D). India, Karnataka.

Polydrepanum sp. 3 — Sankaran & Sebastian, 2018: 171, fig. 6F (D).

Remarks. An unnamed species from an unspecified locality in Karnataka state, India, the right gonopod of which has been presented in a crude sketch by Bano and Murthy (1997), reproduced here in Figs 25 and 26 . Because this species, albeit to be neglected in also being unnamed and based on material of unknown provenance and whereabouts, seems to show an untwisted gonofemorite, no basal loop of the solenomere, and a tripartite and complex solenophore, the distoventral half of which is distinctly enlarged, curved and acuminate, but the ventrobasal part bearing a process, it cannot be a Polydrepanum (cf. Figs 17–20 and 25, 26 ). Instead, this species so readily resembles the new Delarthrum to be described below that both these species are clearly congeneric, yet representing a genus different from Polydrepanum .

Figures

FIGURES 25, 26. Polydrepanum sp. 3 (= Delarthrum sp.). Entire right gonopod, lateral and mesal views, respectively. After Bano and Murthy (1997). Scale bar: 1.0 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.