Odontostreptus maroccanus ( Attems, 1914 )

Enghoff, Henrik & Reboleira, Ana Sofia, 2020, The first blind spirostreptid millipede, found in a cave in Morocco; with notes on the genus Odontostreptus Attems, 1914 (Diplopoda, Spirostreptida, Spirostreptidae), European Journal of Taxonomy 668 (668), pp. 1-11 : 6

Odontostreptus maroccanus ( Attems, 1914)

Figs 3–5

Charactopygus maroccanus Attems, 1914: 201 , figs 81–82.

Scaphiostreptus maroccanus var. tidsiaccola Brolemann, 1928: 38 .

Schaphiostreptus maroccanus var. ahmedensis Brolemann, 1928: 39 .

Scaphiostreptus maroccanus – Brolemann 1928: 37. — Krabbe 1982: 163.

Charactopygus maroccanus ahmedensis – Schubart 1952: 206, figs 7–10.

Charactopygus maroccanus tidsiaccola – Schubart 1960: 226.

Material examined

MOROCCO • 1 ♂, 3 ♀♀, 2 juv.; Asni area ; 1100–1400 m a.s.l.; 8–10 Apr. 1989; Zool. Mus. Copenh. leg.; NHMD 52994 • 1 ♂; same collecting data as for preceding; NHMD 621688 • 1 ♂, 1 ♀; Atlas Azrou ; 1800 m a.s.l.; 17 Apr. 1985; Cedrus forest; M. Stoltze leg.; NHMD 53003 • 1 juv.; Antiatlas , S Ait-Baha, 70 km NW of Tafraoute; 30.00° N, 09°02′ W; 12 Mar. 1997; M. Hauser leg.; NHMD 52999 • 1 ♀; Ait Oueritane , 2 km from Tinerhir; 14 Apr. 1985; R.M. Kristensen leg.; NHMD 53000 • 1 ♂; 15–17 km N of Ijoukak along road S501, at river Nfiss; 23 Apr. 1980; J.B. Rasmussen leg.; NHMD 52997 • 1 ♂, 1 ♀; 76 km S of Marrakesh along road P31; 21 Apr. 1980; under stone; J.B. Rasmussen leg.; NHMD 52998 • 1 ♂; 10 km before Ouzzane; sifted; 26 Apr. 1980; Mediterranean maquis; G. Osella leg. and ded.; NHMD 53001 • 6 ♀♀; Middle Atlas , Aïn Leuh; 1600 m a.s.l.; 5 Jun. 1975; Sama and Magnani leg.; G. Osella ded.; NHMD 53002 .

Descriptive notes

The studied specimens show a great deal of variation in size, colour, and sculpture. Thus, the specimens in samples NHMD 52999 and 53000 lack prozonital ring furrows (character of ssp. tidsiaccola ), and the ones in samples NHMD 53001 and NHMD 53002 have the metazonites clearly vaulted and deeply furrowed even dorsally (character of ssp. ahmedensis ). Figure 3 indicates the colour variation (the difference does not seem to be due to preservation), and Figs 4–5 show gonopods of two males, illustrating the variation in, e.g., the distal margin of the proplica (pp) and the shape of the lateral metaplical process (lap).

Figures

Fig. 3. Odontostreptus maroccanus (Attems, 1914). A. ♀ from the Asni area (NHMD 52994). B–C. ♂, from 10 km before Ouzzane (NHMD 53001). Scale bars = 5 mm.

Fig. 4. Odontostreptus maroccanus (Attems, 1914), ♂, from the Asni area (NHMD 621688). Right gonopod. A. Anterior view. B. Mesal view. C. Posterior view. D. Lateral view. Abbreviations: lap = lateral metaplical process; pp = proplica. Scale bars = 0.2 mm.

Fig. 5. Odontostreptus maroccanus (Attems, 1914), ♂, from 10 km before Ouzzane (NHMD 53001), gonopods. A. Posterior view. B. Anterior view. C. Tip of left telopodite. D. Detail of left coxa. Abbreviations: lap = lateral metaplical process (broken on left gonopod); pp = proplica. Scale bars: A–B = 0.2 mm; C–D = 0.1 mm.