Antichiropus pendiculus 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 : 46-48

Antichiropus pendiculus Car , n. sp.

( Figs 27 A–F, 33)

ZooBank LSID: urn:lsid:zoobank.org:act:4626A85B-2BEC-4286-B80C-9A9CB94C6E7C

Type material examined. Australia: Western Australia: holotype male (damaged, 1 gonopod missing), Area C, ca. 120 km NNW. of Newman , site 12-12N, 22°55’00.5”S, 118°54’37.7”E, 11 June 2008, night search, P. Bolton and J. Puglisi ( WAM T91862, GenBank accession number 12S, MK 735742 ; 28S, MK 735806 ; COIII, MK 735927 ) .

Other material examined. Australia: Western Australia: 1 juvenile, Area C, ca. 120 km NNW. of Newman , site 12-12B, 22°55’00.5”S, 118°54’37.7”E, 11 June 2008, active search, P. Bolton and J. Puglisi ( WAM T91863, GenBank accession number 12S, MK 735743 ; 28S, MK 735807 ; COI, MK 735849 ; COIII, MK 735928 ; CytB, MK 735981 ) ; 1 juvenile, Area C, ca. 120 km NNW. of Newman , site 08-8B, 22°54’02.2”S, 118°59’35.4”E, 11 June 2008, active search, P. Bolton and J. Puglisi ( WAM T91864, GenBank accession number 12S, MK 735744 ; 28S, MK 735808 ; COI, MK 735850 ; COIII, MK 735929 ; CytB, MK 735982 ) ; 1 juvenile, Packsaddle Range, 93 km NW. of Newman , 22°55’54.39”S, 118°45’52.15”E, 1 June 2017, hand collected, B. Durrant and P. Cullen ( WAM T144498 , GenBank accession number 12S, MK 735786 ; 28S, MK 735830 ; COI, MK 735908 ; COIII, MK 735965 ; CytB, MK 736013 ) ; 1 juvenile, Packsaddle Range, 108 km NW. of Newman , 22°53’53.22”S, 119°00’08.23”E ( WAM T144499 , GenBank accession number 12S, MK 735787 ; 28S, MK 735831 ; COI, MK 735909 ; COIII, MK 735966 ; CytB, MK 736014 ) ; 1 juvenile, Packsaddle Range, 108 km NW. of Newman , 22°55’54.39”S, 118°45’52.15”E, 1 June 2017, hand collected, B. Durrant and P. Cullen ( WAM T144500 , GenBank accession number 12S, MK 735788 ; 28S, MK 735832 ; COI, MK 735910 ; COIII, MK 735967 ; CytB, MK 736015 ) ; 1 specimen, Packsaddle Range, 108 km NW. of Newman , 22°55’30.35”S, 118°46’52.97”E ( WAM T144501 , GenBank accession number 12S, MK 735789 ; 28S, MK 735833 ; COI, MK 735911 ; COIII, MK 735968 ; CytB, MK 736016 ) ; 1 specimen, Packsaddle Range, 108 km NW. of Newman , 22°55’46.09”S, 118°47’15.22”E ( WAM T144502 , GenBank accession number 12S, MK 735790 ; 28S, MK 735834 ; COI, MK 735912 ; COIII, MK 735969 ; CytB, MK 736017 ) ; 1 juvenile, Packsaddle Range, 108 km NW. of Newman , 22°55’39.13”S, 118°48’18.70”E, 1 June 2017, hand collected, B. Durrant and P. Cullen ( WAM T144503 , GenBank accession number 12S, MK 735791 ; 28S, MK 735835 ; COI, MK 735913 ; COIII, MK 735970 ; CytB, MK 736018 ) ; 1 juvenile, Packsaddle Range, 93 km NW. of Newman , 22°53’19.12”S, 119°01’45.63”E, 1 June 2017, hand collected, B. Durrant and P. Cullen ( WAM T144504 , GenBank accession number 12S, MK 735792 ; COI, MK 735914 ; COIII, MK 735971 ; CytB, MK 736019 ) ; 1 specimen, Packsaddle Range, 93 km NW. of Newman , 22°53’29.28”S, 118°59’44.07”E ( WAM T144505 , GenBank accession number 12S, MK 735793 ; 28S, MK 735836 ; COI, MK 735915 ; COIII, MK 735972 ; CytB, MK 736020 ) ; 1 juvenile, Packsaddle Range, 80 km NW. of Newman , 22°55’02.95”S, 119°09’06.46”E, 1 June 2017, hand collected, B. Durrant and P. Cullen ( WAM T144506 , GenBank accession number 12S, MK 735794 ; 28S, MK 735837 ; COI, MK 735916 ; COIII, MK 735973 ; CytB, MK 736021 ) ; 1 specimen, Packsaddle Range, 80 km NW. of Newman , 22°55’11.12”S, 119°08’41.83”E ( WAM T144507 , GenBank accession number 12S, MK 735795 ; 28S, MK 735838 ; COI, MK 735917 ; COIII, MK 735974 ; CytB, MK 736022 ) ; 1 juvenile, Packsaddle Range, 80 km NW. of Newman , 22°54’33.82”S, 119°07’39.05”E, 1 June 2017, hand collected, B. Durrant and P. Cullen ( WAM T144508 , GenBank accession number 12S, MK 735796 ; 28S, MK 735839 ; COI, MK 735918 ; COIII, MK 735975 ; CytB, MK 736023 ) ; 1 female, Packsaddle Range, 80 km NW. of Newman , 22°53’45.40”S, 119°04’38.02”E, 1 June 2017, hand collected, B. Durrant and P. Cullen ( WAM T144509 , GenBank accession number 12S, MK 735797 ; 28S, MK 735840 ; COI, MK 735919 ; COIII, MK 735976 ; CytB, MK 736024 ) ; 1 specimen ca. 105 km NW. of Newman , 22°52’19.97”S, 118°51’37.73”E ( WAM T144510 , GenBank accession number 12S, MK 735798 ; 28S, MK 735841 ; COI, MK 735920 ; COIII, MK 735977 ; CytB, MK 736025 ) ; 1 juvenile, 105 km NW. of Newman , 22°53’48.88”S, 118°51’33.39”E, 1 June 2017, hand collected, B. Durrant and P. Cullen ( WAM T144513 , GenBank accession number 12S, MK 735799 ; 28S, MK 735842 ; COI, MK 735921 ; COIII, MK 735978 ; CytB, MK 736026 ) ; 1 specimen ca. 105 km NW. of Newman , 22°53’56.75”S, 118°51’05.72”E ( WAM T144514 , GenBank accession number 12S, MK 735800 ; 28S, MK 735843 ; COI, MK 735922 ; COIII, MK 735979 ; CytB, MK 736027 ) ; 1 specimen ca. 105 km NW. of Newman , 22°54’00.81”S, 118°51’14.40”E ( WAM T144515 , GenBank accession number 12S, MK 735801 ; 28S, MK 735844 ; COI, MK 735923 ; COIII, MK 735980 ; CytB, MK 736028 ) .

Diagnosis. Gonopod: Antichiropus pendiculus Car , n. sp. is most similar to A. cirratus Car , n. sp. ( Fig 7 ): both have long, slender, curled solenomeres, distinct from those of all other Pilbara species. Antichiropus cirratus has, however, a noticeable protuberance on the distal end of the femorite, lacking in A. pendiculus . The most noticeable feature of A. pendiculus is that it lacks a solenomere process of any description, though it does conform to the genus in its other characteristics ( Car et al., 2013).

Description. Male holotype: Body ca. 12.5 mm long; midbody ring ca. 1 mm wide, with distinct, smooth waist, prozonite narrower than metazonite.

Colour (in alcohol) brown overall, pale brown ventrally ( Fig 27A ); leg colour as for body. No obvious paranota ( Fig 27B ).

Sternites without obvious processes/tubercles, sternal lamella narrow, heart-shaped. Leg coxal processes absent. Anterior spiracles at midbody small, flat.

Head smooth, with no sculpturing; frons smooth, with setae; face narrow, maximum width ca. 3x the distance between antennal sockets; sockets separated by ca. 1.5x width of socket. Antennae clavate, stocky, short, reaching only to collum, antennomere 5 wider than proximal ones.

Collum 0.8x as long as head (in lateral view) ( Fig 27A ).

Gonopod short, reaching ring 6; coxa (C) damaged (not shown in Fig 27 ); prefemur (PF) considerably shorter than femorite, setose; prefemoral lip pronounced; femorite (F) ca. 2/3 of acropodite length in situ, upright; main femoral process (MFP) slender, finger-like, pointed, curving over anterior femorite; second femoral process (fp1) large, pointed, triangular; prolongation of femorite (prof) absent; solenomere (S) very long, slender, smooth, form- ing circle that curls round at 45 o to the upright femorite; solenomere tip smooth, pointed; solenomere process (sp1) absent ( Figs 27 C–F).

Female: unknown.

Distribution. To date, found only in a mining area known as Area C in the Pilbara region, west-north-west of the town of Newman ( Fig 33 ).

Etymology. This species is named for the slender, long solenomere curled in a circle (Latin, noun, pendiculus , cord, noose).

Figures

FIGURE 7. Antichiropus cirratus Car, n. sp., holotype male (WAM T144537): 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: F, femorite; fp1, second femoral process; MFP, main femoral process; PF, prefemur; S, solenomere; stip, solenomere tip. Scale bars: A = 2 mm; B = 1 mm; C–F = 0.5 mm.

FIGURE 27. Antichiropus pendiculus Car, n. sp.: holotype male (WAM T91862): 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: F, femorite; fp1, femoral process two; MFP, main femoral process; PF, prefemur; S, solenomere. Scale bars: A = 2 mm; B = 1 mm; C–F = 0.2 mm.

FIGURE 33. Map showing the known distributions of A. nimbus Car, n. sp., A. pendiculus Car, n. sp., A. picus Car, n. sp., A. procerus Car, n. sp., A. quaestionis Car, n. sp., A. rupinus Car, n. sp. and A. salutus Car, n. sp..