A review of the Australian millipede genus Atelomastix (Diplopoda: Spirostreptida: Iulomorphidae) 2371 Author Edward, Karen L. Author Harvey, Mark S. text Zootaxa 2010 2010-02-25 2371 1 1 63 https://biotaxa.org/Zootaxa/article/view/zootaxa.2371.1.1 journal article 10.11646/zootaxa.2371.1.1 1175­5334 5312214 6140530D-9F81-4443-AFD1-7EF84005E834 Atelomastix tumula , sp. nov. Figs. 6 , 74 , 135, 136 . Type material: AUSTRALIA : Western Australia : holotype male, Bluff Knoll walking trail, Stirling Range National Park , 34°23’S , 118°15’E , hand collected, 6 April 2004 , M.S. Harvey , J.M. Waldock , K.L. Edward , C. Poustie ( WAM T 74317) . Paratypes : 1 male , collected with holotype ( WAM T 74318) . Other material examined: AUSTRALIA : Western Australia : 7 females , collected with holotype ( WAM T 70204) . Etymology: The specific name is an adjective based on the type locality, Bluff Knoll ( tumulus , Latin, raised mound of earth). Diagnosis: Atelomastix tumula is generally greenish brown or dark brown with pale bands, and is relatively large in size (body width 2.4 mm , length> 44 mm ). This species is similar to A. danksi , A. montana , and A. poustiei as the anterior gonopod sclerite a is broad and concave sub-medially. However, it can be distinguished by the presence of two bifurcations of sclerite c of the male gonopod. This species exhibits a shallow asymmetrical distal bifurcation with a larger medial process and a deep asymmetrical medial bifurcation with a larger lateral process. The distal hood of sclerite a is not as broad as similar species, but is rather deep with the elongate pseudoflagellum entirely exposed. Description: Male ( holotype ). Colour: live specimens dark blue-grey with lighter bands between segments; head, antennae, ozopores and legs golden-brown, rest dark brown, prozonites green-brown, metazonites darker brown to pale white in preserved specimens. Body: ca. 44 mm long and ca. 2.4 mm wide at collum. With 60 trunk segments, 109 pairs of legs, last 2 segments without legs. Head: with ca. 21 ocelli ( Fig. 74 ), arranged in 3 rows (6: 7: 8). Gonopods: anterior gonopods ( Figs. 135, 136 ) very large, heavily sclerotised and complex in structure, 2.14 times longer than broad; sclerite a with swollen base that forms broad, concave area where pseudoflagellum emerges, and, curved distal hood that is characteristically domed; sub-distal edge of concave area of sclerite a with 6 larger setae; upper distal face of sclerite a with 22 short blunt setae; pseudoflagellum long, elongate and distally visible beneath broadened distal hood; sclerite b elongate and curved, terminating in a blunt, rounded tip, with 0–1 sub-distal setae; basal process of sclerite b large, triangular, tapering to form rounded tip, 0.39 times the length of the main process; sclerite c same height as sclerite b , almost bifurcate with medial section noticeably broad, slightly tapering to blunt concave tip, with 10 setae (n=2) on internal concave face; with group of 6–8 (n=2) fine setae on sub-basal edge of sclerite b instead of single sub-basal setae where sclerites overlap, and group of 10 short setae sub-basally on sclerite c ; posterior gonopods inconspicuous, small, with several small setae on interno-lateral face of each gonopod. Dimensions (mm): holotype male ( paratype male, WAM T74317): length ca. 44, width ca. 2.4, L/W=18.4; sclerite a 1.248 / 0.584 ( 1.152 / 0.558 ), setae 8 + 6 (8 + 6); sclerite b 0.520 (0.499), basal process of sclerite b 0.204 (0.202), setae 0 (1); sclerite c 0.904 (0.880), setae 3 (8). Female . Unknown. Distribution and habitat: Atelomastix tumula is known only from two males and seven females hand collected under rocks along the Bluff Knoll walking trail in the Stirling Range National Park ( Fig. 6 ). The habitat consists of moist jarrah ( Eucalyptus marginata ) and marri ( Corymbia calophylla ) forest with a relatively thick understorey.