A taxonomic monograph of the liphistiid spider genus Heptathela, endemic to Japanese islands Author Xu, Xin Author Ono, Hirotsugu Author Kuntner, Matjaz Author Liu, Fengxiang Author Li, Daiqin text ZooKeys 2019 888 1 50 http://dx.doi.org/10.3897/zookeys.888.34494 journal article http://dx.doi.org/10.3897/zookeys.888.34494 1313-2970-888-1 B995C05697EC41A49012B58F9D3AFDC1 F8810409F4DA5A43BF94417F5D40DECE Heptathela otoha sp. nov. Fig. 19 Type material. Holotype : JAPAN · ♀; Okinawa-ken, Nakijin-son, Mt. Otoha-dake; 26.67N , 127.97E ; alt. 80 m; 27 December 2012; D. Li, F.X. Liu and X. Xu leg.; XUX-2012-535. Paratypes : JAPAN · 3 ♀♀; Okinawa Prefecture, Motobu-cho, Yamazato; 26.67N , 127.91E ; alt. 160 m; 11 May 2014; D. Li and B. Wu leg.; XUX-2014-094, 097, 099 · 3 ♀♀; Okinawa Prefecture, Nakijin-son, Mt. Otoha-dake; 26.67N , 127.97E ; alt. 100 m; 11 May 2014; D. Li and B. Wu leg.; XUX-2014-101, 102, 103. Diagnosis. Females of H. otoha sp. nov. can be distinguished from those of H. yanbaruensis , H. unten sp. nov., and H. crypta sp. nov. by the inner receptacular clusters with several granules, albeit these inner clusters are difficult to be separated from the laterals ( Fig. 19 A-D ). H. otoha sp. nov. can also be diagnosed from all other Okinawa group Heptathela species by the following unique nucleotide substitutions in the standard DNA barcode alignment: G (83), G (206), G (488). Figure 19. Female genital anatomy of Heptathela otoha sp. nov. A, C 2535 (holotype, short for XUX-2012-535) B, D 4094 A, B vulva dorsal view C, D vulva ventral view. Scale bar: 0.5 mm. Description. Female (Holotype). Carapace yellow brown; opisthosoma light brown, with brown and black-spotted tergites; cheliceral groove with 13 pronounced denticles; seven spinnerets. Measurements: BL 10.92, CL 4.75, CW 4.35, OL 6.60, OW 4.90; ALE> PLE> PME> AME; palp 8.30 (2.78 + 1.39 + 1.90 + 2.23), leg I 9.80 (3.05 + 1.65 + 1.95 + 1.95 + 1.20), leg II 9.21 (2.90 + 1.50 + 1.81 + 1.90 + 1.10), leg III 9.84 (2.70 + 1.70 + 1.62 + 2.35 + 1.47), leg IV 14.74 (4.00 + 1.90 + 2.70 + 4.03 + 2.11). Female genitalia . A pair of depressions on the ventro-lateral part of genital atrium ( Fig. 19C, D ). Paired receptacular clusters along the anterior margin of bursa copulatrix, divided into indistinct two parts, but difficulty to separate, both with several granules, with very short genital stalks ( Fig. 19 A-D ). Male. Unknow. Etymology. The species epithet, a noun in apposition, refers to the type locality. Distribution. The species is endemic to the Japanese island Okinawajima ( Fig. 1C ).