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Synthetonychia ramosa

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Synthetonychia ramosa
Synthetonychia ramosa Forster-1954
Synthetonychia ramosa Forster, 1954 (from original description)









Synthetonychia ramosa Forster, 1954 belongs to the genus Synthetonychia (Laniatores: Synthetonychiidae)



  • S.r. male(1) (holotype): Dominion Museum, Wellington; #2/893[1]
  • S.r. female(1) (allotype): Dominion Museum, Wellington; #2/894[1]
  • S.r. female(1) (paratype): Canterbury Museum, Christchurch; #888[1]
  • S.r. male(1) (paratype): Canterbury Museum, Christchurch; #894[1]
  • S.r. female(1) (paratype): Dominion Museum, Wellington; #2/895[1]
  • S.r. male(1) (not designated): Dominion Museum, Wellington; #2/896[1]


(from Forster, 1954[1])

  • Color: Pale brown with black shading.
  • Body: The carapace is closely and finely granulate, the tergal region is shiny with a series of single rows of similar granules which form a definite pattern. The free tergites and the sternites are smooth. The eyes are separated from the anterior margin of the carapce by a distance equal to 2/5 of the total length of the scute, separated from each other by a distance equal to 2½x their diameter. The genital operculum is as shown in Fig. 744, the width at the base is equal to ½ of its length, anterior margin indented and with prominent lateral lobes.
  • Genitalia: Tubular, narrowing anteriorly, with two prominent spines on the proximo-ventral surface. There is a transverse row of 6 setae on the dorsal surface at about 1/3, which are arranged in 2 groups of 3 (Fig. 743).
  • Chelicerae: Typical.
  • Pedipalls: (Fig 739). There is a strong hooked process on the disto-ventral surface of the trochanter as shown in Fig. 741, a transverse row of 3 low rounded tubercles on the retro-ventral surface and a similar single tubercle on the dorsal surface. Femur with a prominent lobe on the proximo-ventral surface and a small conical tubercle on the proximo-dorsal surface. The disto-dorsal process of the tibia is strong and digitiform. The tarsus is slender and almost straight. Tarsal spine slender, 2/3 of length of tarsal claw.
  • Legs: Smooth apart from few low tubercles on femora 1 and 2. Tarsal formula Tarsal claws 3 and 4 as shown in Fig. 745.
  • Measurements (mm): Scute: 1.17x0.96; Legs: 2.45, 3.22, 2.68, 3.40; Pedipalp: 2.07; Chelicera: 0.60
  • Female: Similar in general structure to male. The pedipalps are as shown in Fig. 742. The genital operculum is wider than long in ratio of 5:4.
  • Measurements (mm): Scute: 1.32x1.20; Legs: 2.30, 3.28, 2.83, 3.73; Pedipalp: 2.08; Chelicera: 0.57


  • Location: Wellington District, Kapiti Island & Mount Ross, New Zealand (North Island)[1]


  • Forster, 1954:281[1]
  • World Checklist[2]

Additional images - GalleryEdit


  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 Forster, R.R. (1954) The New Zealand harvestmen (sub-order Laniatores). Canterbury Museum bulletin, Christchurch, 2, 1–329.
  2. Kury AB, Mendes AC & Souza DR (2014) World Checklist of Opiliones species (Arachnida). Part 1: Laniatores – Travunioidea and Triaenonychoidea. Biodiversity Data Journal 2: e4094. doi: 10.3897/BDJ.2.e4094

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