Antichiropus sloanae Car, 2019

Car, Catherine A., Harvey, Mark S., Hillyer, Mia J. & Huey, Joel A., 2019, The millipede genus Antichiropus (Diplopoda: Polydesmida: Paradoxosomatidae), part 3: species of the Pilbara bioregion of Western Australia, Zootaxa 4617 (1), pp. 1-71 : 59-60

Antichiropus sloanae Car , n. sp.

( Figs 36 A–G, 41)

ZooBank LSID: urn:lsid:zoobank.org:act:EBE680D4-91DF-4E75-B5C8-6015477BBE09

Type material examined. Australia: Western Australia: holotype male (badly damaged), ca. 90 km NE of Newman , 22°28’44.1”S, 119°56’31.7”E, 16 February 2012, hand foraging, M.K. Curran ( WAM T144612 ) .

Other material examined. Australia: Western Australia: 1 juvenile, Christmas Creek, 110 km N. of Newman , 22°22’44.9”S, 119°49’06.77”E, 23 March–12 April 2011, pit trap in leaf litter, S. Danti and S. Callan ( WAM T 111856, GenBank accession number COI, MK 735877 ) ; 1 juvenile, Christmas Creek, 110 km N. of Newman , 22°23’35.79”S, 119°46’46.84”E, 11 April 2011, leaf litter sifting, S. Danti and S. Callan ( WAM T113481 , GenBank accession number COI, MK 735879 ) ; 1 juvenile (damaged), collected with holotype ( WAM T 121032, GenBank accession number 12S, MK 735762 ; 28S, MK 735822 ; COI, MK 735888 ; COIII, MK 735943 ; CytB, MK 735994 ) ; 1 juvenile, 100 km N. of Newman , 22°23’47.95”S, 119°46’36.00”E, 11 April 2011, leaf litter sifting, S. Danti and S. Callan ( WAM T124140 , GenBank accession number COI, MK 735890 )

Diagnosis. Gonopod: Antichiropus sloanae Car , n. sp. is most similar to A. simmonsi Car , n. sp. ( Fig 35 ) but differs mainly in the shape of the main femoral process. That of A. sloanae .curves smoothly upward to meet the femorite (medial and lateral views) while that of A. simmonsi has a large protuberance at its base.

Description. Male holotype: Body ca. 15 mm long, smooth; midbody ring ca. 2 mm wide, with shallow, smooth waist, prozonite and metazonite of similar width.

Colour (in alcohol) dark chestnut brown ( Fig 36A ): leg colour, chestnut, lighter near body. No paranota ( Fig 36B ).

Sternites without obvious processes/tubercles, sternal lamella damaged. Leg coxal processes absent. Anterior spiracles at midbody, small, circular, flat.

Head smooth without noticeable sculpturing; frons smooth; face broad, maximum width ca. 5x the distance between antennal sockets; sockets separated by ca. 1x width of socket. Antennae short, reaching to collum, moderately robust, segments of similar length and width.

Collum ca. 0.6x length of head (lateral view) ( Fig 36A .).

Gonopod of medium length, reaching ring 5; coxa (C) robust, broader than femorite and 1/2 femorite length, with pronounced ridge on anterior surface; prefemur (PF) much shorter than femorite, setose, slight prefemoral lip; femorite (F) 2/3 acropodite length, upright, of similar width along its length to the main femoral process (MFP); (main femoral process 1/4 length of solenomere relatively broad, leaf-shaped with asymmetrical point; second femoral process (fp1) absent; prolongation of femorite (prof) broad, pointed triangular; solenomere (S), moderately long, forming an open loop, slender, widest at mid length, tapering to leaf-like tip with an asymmetrical point; solenomere process 1 (sp1) minute, pointed at tip; second solenomere process (sp2) near solenomere tip, small, square base with two sharp points ( Figs 36 C–G).

Female: unknown.

Distribution. There is only a single adult specimen known, from an area north-west of the town of Newman ( Fig 41 ).

Etymology. This species is named for Nadia Sloan who studies Antichiropus millipedes.

Figures

FIGURE 35. A. simmonsi n.sp. holotype male (WAM T144611): A–B, habitus: A, lateral view; B, dorsal view; C–F, left gonopod: C, posterior view; D, anterior view; E, medial view; F, lateral view. Abbreviations: C, coxa; F, femorite; MFP, main femoral process; PF, prefemur; prof, prolongation of femorite; S, solenomere; sp1, solenomere processes 1. Scale bars: A = 2 mm; B = 1 mm; C–F = 0.5 mm.

FIGURE 36. Antichiropus sloanae Car, n. sp., holotype male (WAM T144612): A–B, habitus: A, lateral view; B, dorsal view; C–G, left gonopod: C, posterior view; D, anterior view; E, medial view; F, lateral view; G, enlarged lateral view of solenomere tip showing processes. Abbreviations: C, coxa; F, femorite; MFP, main femoral process; PF, prefemur; prof, prolongation of femorite; S, solenomere; sp1 and sp2, solenomere processes1 and 2; Scale bars: A = 2 mm; B = 1 mm; C–F = 0.5 mm; G = 0.2 mm..

FIGURE 41. Map showing the known distributions of A. servulus Car, n. sp., A. simmonsi Car, n. sp., A. sloanae Car, n. sp., A. spathion Car, n. sp., A. uvulus Car, n. sp., A. verutus Car, n. sp. and A. vindicatus Car, n. sp.