Neobisium (Neobisium) gennargentui Callaini 1983
Neobisium (Neobisium) gennargentui Callaini, 1983 (n. stat.) (Figs 16–29, 79) Neobisium (Neobisium) bernardi gennargentui Callaini, 1983: 282, figs 1a–g. Neobisium (Neobisium) incertum: Gardini 2011: 825 (in part: Monte Sette Fratelli). Type locality: Italy, Sardinia, Nuoro Province, Fonni, Arcu Correboi (40°04’57”N 9°20’49”E). Distribution. Italy (Sardinia). Diagnosis (♂ ♀). An epigean small-sized Neobisium from Sardinia that differs from other Mediterranean species of the genus in the following combination of characters: carapace without preocular microsetae and with 7–11 (mostly 8) posterior setae; ocular and median rows of carapace with a total of 12 setae; epistome acute triangular; anterior and posterior eyes bulging and almost contiguous; anterior eyes at a distance of approximately half their diameter from the edge of the carapace; tergites I–IV: 6–9:9–11:10–14:10–14; cheliceral palm with 6 or 7 setae, rallum with 8 (rarely 9) blades; pedipalps smooth; fixed chelal finger homodentate, with 51–57 contiguous teeth, movable chelal finger with 41–50 uniform, broadly rounded teeth; pedipalpal femur 0.645–0.74 mm length (3.40–3.80 ×), patella 0.46–0.54 mm (2.10–2.26 ×), distal opening of the patella wide (X/Y = 1.0–1.03), movable finger 0.60–0.71 mm; pedipalpal hand with oval profile; ratio between movable chelal finger and hand of chela with pedicel lengths 1.03–1.24; ratio between pedipalpal femur and movable chelal finger lengths 0.98–1.13; ratio between pedipalpal femur and carapace lengths 1.06–1.11; trichobothrium it at level of et or just proximal et; trichobothrium ist in the middle of the fixed chelal finger, just proximal st and closer to it than to ib. Type material examined. ITALY — Sardinia: Nuoro Province: 1♂ holotype, “ Neobisium bernardi gennargentui n. ssp. / ♂ holotypus” “Sardegna 29-4-75 / Arcu Correboi - muschio e prato (Pseudoscorpioni)” (MSNG). Non-type material examined. ITALY — Sardinia: Cagliari Prov.: 1♀ (Neobisium incertum, G. Gardini det.), Sinnai, Mt Sette Fratelli, 17. V.1991, L. Fancello & P. Leo leg. Sardinia: Nuoro Prov.: 1♂, Fonni, Mt Spada, 1350 m a.s.l., 3.IV.1997, S. Vit leg.; 2T, Gennargentu, Punta Marcusa, 1250 m a.s.l., 28. V.1974, G. Bartoli leg. sifting under Ilex aquifolium; 1♀, Jerzu, Genna Su Ludu, 7.III.1989, L. Fancello & P. Leo leg.; 1T, Oliena, Mt Maccione, III.2014, C. Onnis leg.; 1♀ 1T, Ollolai, 2.XII.2010, L. Fancello leg.; 2T, Perdasdefogu, 18. VI.1983, C. Torti leg., Quercus ilex wood; 1♂, Siniscola, Mt Albo, 24. V.1976, G. Bartoli leg.; 1♀, near Ulassai, 850 m a.s.l., 2.XII.1987, L. Fancello & P. Leo leg. Sardinia: Oristano Prov.: 2♂ 1♀, near Cuglieri, 700 m a.s.l., 2.IV.1997, S. Vit leg., Quercus ilex wood; 4T, Pau, Mt Arci, Parco dell’Ossidiana, 14.IV.2013, C. Onnis leg. Description of adults (♂ ♀). Carapace, chelicerae, pedipalps and palpal coxae yellow-brown, chelal fingers of the same colour of the hand; pedipalps smooth and shiny, pleural membrane granular. Carapace 1.0–1.3 (♂ ♀) times as long as broad, with four bulging eyes with tapetum (Fig. 16); anterior eyes with convex lens (diameter 0.080 –0.085 mm), the posterior ones weakly reduced; distance from anterior eyes to anterior margin of carapace 0.040 –0.045 mm; distance from anterior to posterior eyes 0.02–0.03 mm; anterior margin of carapace with acute triangular epistome (0.03 mm length), without apical denticles (Figs 16, 24); chaetotaxy 4:6:6:7–11, posterior row mostly with 8 setae, preocular setae absent. Chaetotaxy of tergites I–X (♂ ♀): 6–9:9–11:10–14:10–14:11–15:11– 14:11–13:11–13:10–13:11–13. Chaetotaxy of sternites II–X (♂): 9–12:(2–3)23–30(2–3):(3)12–14(3):14–17:14– 17:16–17:16–17:17–18:14–16, lateral genital sacs tubular, median genital sac pyriform, reaching the base of sternite V, genital atrium with 5+5 setae; genital area as in Fig. 19; chaetotaxy of sternites II–X (♀): 6:(2)18(2):(2–3)13– 18(3):15:16:17:16:18:15. Chelicera (Figs 18, 26) 1.78–1.97 (♂ ♀) times as long as broad, palm with 6 or 7 setae; fixed finger with 10–15 teeth, gradually smaller distally; movable finger with 8–12 teeth, the largest just distad gs; gs ratio 0.59–0.64, spinneret subcircular, largely prominent in female, more reduced in male; rallum with 8 (rarely 9) blades, the distal one laterally pinnate and isolated on a prominence, the second one serrate, the successive ones smooth, the proximal isolated and very short; serrulae interior and exterior with 20–24 and 25–26 blades, respectively. Manducatory process with 4 (rarely 3) setae. Coxal setae (♂ ♀): pedipalp 7–8, I 6, II 6–8, III 7–8, IV 11–12; anterolateral process of coxa I strongly prominent and pointed, anteromedial process prominent and apically rounded, with evident spiniform processes (Figs 17, 25). Pedipalp (Figs 20–22, 27–29): trochanter 1.81–1.88 (♂ ♀) times as long as broad, with a prominent tubercle on antiaxial face; femur 3.62–3.80 (♂) or 3.40–3.70 (♀) times as long as broad, weakly enlarged distally; patella 2.15–2.26 (♂) or 2.10–2.24 (♀) times as long as broad, ratio X/Y = 1.00–103 (♂ ♀); chela with pedicel 3.09–3.33 (♂) or 2.94–3.33 (♀) times as long as broad; hand of chela with pedicel 1.64–1.70 (♂) or 1.50–1.66 (♀) times as long as broad, with oval profile and its greatest width just before the middle; fingers just curved in dorsal view (Figs 21, 28); fixed chelal finger homodentate (Figs 22, 29), with 51–57 (♂ ♀) contiguous teeth, mostly pointed in the distal half of the finger, rounded in the proximal half; nodus ramosus subterminal; movable chelal finger with 41–50 (♂ ♀) uniform, broadly rounded teeth (Figs 22, 29); all teeth with dental canals; trichobothria as in figs 21–22, 28–29, relative position of trichobothria along chelal axis (♂ ♀): it 0.24–0.28/ et 0.25–0.265/ est 0.29 –0.34/ ist 0.49–0.52/ isb 0.75–0.78/ ib 0.78–0.81/ esb 0.87–0.90/ eb 0.89–0.91/ t 0.37– 0.39/ st 0.465–0.50/ sb 0.67–0.70/ b 0.85–0.86; trichobothrium it at level of et or just proximal et; trichobothrium ist just proximal st (rarely at level of st), in the middle of the fixed chelal finger and closer to it than to ib; ratio between movable finger and hand of chela with pedicel lengths 1.03–1.24 (♂ ♀); ratio between pedipalpal femur and movable finger lengths 0.98–1.13 (♂ ♀); ratio between pedipalpal femur and carapace lengths 1.06–1.11 (♂ ♀). Leg IV (Fig. 23): trochanter 1.89–2.23 (♂ ♀) times as long as deep, femur + patella 2.93–3.28 (♂ ♀) times as long as deep, tibia 4.86–5.19 (♂ ♀) times (TS = 0.39–0.41), basitarsus 2.72–3.33 (♂ ♀) times (TS = 0.17–0.21), telotarsus 4.00–4.71 (♂ ♀) times as long as deep (TS = 0.32–0.38), ratio between basitarsus and telotarsus lengths 0.72–0.77 (♂ ♀), subterminal seta furcate, rarely indented (Fig. 23), claws without dorsal tooth. Measurements. Body length 2.0–2.2 (♂) or 2.2–2.5 (♀). Carapace 0.595–0.64 × 0.50–0.59 anteriorly (♂) or 0.64–0.66 × 0.52–0.56 anteriorly (♀). Chelicera 0.41–0.42 × 0.21–0.23 (♂) or 0.455–0.47 × 0.25–0.26 (♀); movable finger length 0.265 –0.275 (♂) or 0.29–0.30 (♀). Pedipalp: trochanter 0.35–0.36 × 0.19–0.195 (♂) or 0.36–0.385 × 0.195 –0.205 (♀); femur 0.645–0.68 × 0.17–0.185 (♂) or 0.68–0.74 × 0.19–0.205 (♀); patella 0.46–0.52 × 0.21–0.24 (♂) or 0.505–0.54 × 0.225 –0.255 (♀); chela with pedicel 1.04–1.15 × 0.30–0.36 (depth 0.30–0.36) (♂) or 1.16–1.26 × 0.355 –0.415 (depth 0.36–0.415) (♀); hand with pedicel length 0.50–0.58 (♂) or 0.57–0.64 (♀); movable finger length 0.60–0.67 (♂) or 0.67–0.71 (♀). Leg IV: trochanter 0.29–0.315 × 0.13–0.155 (♂ ♀); femur + patella 0.65– 0.69 × 0.21–0.235 (♂) or 0.69–0.71 × 0.21–0.24 (♀); tibia 0.54–0.56 × 0.105 –0.115 (♂ ♀); basitarsus 0.24–0.25 × 0.075–0.09 (♂ ♀); telotarsus 0.31–0.34 × 0.07–0.085 (♂ ♀). Description of tritonymph. Carapace, chelicerae, pedipalps and palpal coxae brown pale, chelal fingers of the same colour of the hand; pedipalps smooth and shiny, pleural membrane granular. Carapace 1.15–1.3 times as long as broad, with four eyes; anterior eyes with convex lens (diameter 0.06 mm), the posterior ones weakly reduced; distance from anterior eyes to anterior margin of carapace 0.025 mm; distance from anterior to posterior eyes 0.015 mm; anterior margin of carapace with acute triangular epistome (0.015 mm length), rarely with apical denticles; chaetotaxy 4:6:6:6–7; preocular microsetae absent. Chaetotaxy of tergites I–X: 6–11:11:12:11–13:11–14:11–12:10– 13:12:13:10. Chaetotaxy of sternites II–X: 2:(2) 5–7 (2):(2)9–10(2): 13:13–14:13:12–14:13–14:11. Chelicera 1.68– 1.71 times as long as broad, palm with 6 setae; fixed finger with 7–10 teeth, gradually smaller distally; movable finger with 6–9 teeth, the largest just distad gs; gs ratio 0.58–0.60, spinneret subcircular, largely prominent; rallum with 7 blades, the distal one laterally pinnate and isolated on a prominence, the second one serrate, the successive ones smooth, the proximal isolated and very short; serrulae interior and exterior with 22 and 24 blades, respectively. Manducatory process with 3 or 4 setae. Coxal setae: pedipalp 7, I 6, II 6, III 6, IV 7; anterolateral process of coxa I strongly prominent and pointed, anteromedial process prominent and apically rounded, with evident spiniform processes. Pedipalp: trochanter 1.76–1.89 times as long as broad, with a prominent tubercle on antiaxial face; femur 3.22–3.35 times as long as broad; patella 2.0–2.05 times as long as broad; chela with pedicel 3.05–3.17 times as long as broad; hand of chela with pedicel 1.55–1.57 times as long as broad; fixed chelal finger homodentate, with 43–45 pointed contiguous teeth, nodus ramosus subterminal; movable chelal finger with 38–41 teeth: all teeth with dental canals; relative position of trichobothria along chelal axis: it 0.30–0.315/ et 0.305 –0.325 / est 0.40 / ist 0.54–0.55/ ib 0.80–0.82/ esb 0.845–0.86/ eb 0.88–0.90/ t 0.44–0.45/ st 0.615–0.63/ b 0.85–0.86; ratio between movable finger and hand of chela with pedicel lengths 1.11–1.19; ratio between pedipalpal femur and movable finger lengths 1.0
Publication Details
- Journal
- Zenodo (CERN European Organization for Nuclear Research)
- Published
- 2025-04-24
- DOI
- https://doi.org/10.5281/zenodo.15366617
- Primary Topic
- Marine Sponges and Natural Products
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- article
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