Sibiriulus altaicus Gulička, 1972

Mikhaljova, Elena V., Nefediev, Pavel S., Nefedieva, Julia S., Sakhnevich, Miroslava B. & Dyachkov, Yuri V., 2014, Review of the millipede genus Sibiriulus Gulička, 1972, with descriptions of three new species from Altai, Siberia, Russia (Diplopoda, Julida, Julidae), Zootaxa 3866 (1) : -

Sibiriulus altaicus Gulička, 1972

Figs 30–32 .

Cylindroiulus (Sibiriulus) altaicus Gulička 1972: 43 –44, 44: fig. 5: 2 (holotype male, lost).

Sibiriulus altaicus — Lokšina & Golovatch 1979: 387; Mikhaljova 1993: 13; 2004: 75: fig. 125; Mikhaljova & Golovatch 2001: 106; Mikhaljova et al., 2007: 57 –59, 62, 58: figs 1–6. Nefediev & Nefedieva 2007: 162; 2013: 86–87.

Material re-examined (specimens published by Mikhaljova & Nefediev 2003, Mikhaljova et al. 2007). 1 male ( IBSS), Russia, Siberia, Republic of Altai, Ulagan District, Altai State Nature Biosphere Reserve, environs of Lake Teletskoye, near cordon Chiri, mouth of Kyga River, subalpine sparse growth of Pinus sibirica, 1935 m a.s.l., litter, 14 August 2005, leg. P.S. Nefediev and J.S. Nefedieva; 1 female ( IBSS), Russia, Siberia, Republic of Altai, Ulagan District, Altai State Nature Biosphere Reserve, cordon Chiri, mouth of Kyga River, near Ayukol hut, Pinus sibirica with Abies sibirica forest, 1270 m a.s.l., litter, 17 August 2005, leg. P.S. Nefediev and J.S. Nefedieva.

Type locality. Near Lake Ayukol, environs of Lake Teletskoye, Republic of Altai, Siberia, Russia.

Diagnosis. This species differs from congeners mainly by the presence of a straight inner process in the distal part of the opisthomere combined with the gonopod mesomere distal part near hook-shaped.

Distribution. Russia: Siberia (Republic of Altai).

Remarks. This species was originally described from near the Ayukol Lake, environs of the Teletskoye Lake, Republic of Altai, Siberia, Russia, in the subgenus Sibiriulus of the genus Cylindroiulus ( Gulička 1972) . Since then Sibiriulus has been elevated to genus status ( Lokšina & Golovatch 1979). Later, the species was redescribed based on topotypes because the type material had been lost ( Mikhaljova et al. 2007). Known only from environs of Lake Teletskoye, Republic of Altai, its terra typica.

The morphological characters of the species vulvae have never been presented. Some of them are as follows: operculum with subtriangular apical incision; each of two longitudinal rows on operculum with 3–5 setae; 18–20 setae on posterior bursal median sclerite; 4–8 setae on lateral and mesal sclerites of the bursa together.

Gonopods and vulvae of this species have never been shown in an SEM micrograph. Therefore they are given here ( Figs 30–32 ).

Figures

FIGURES 30 – 32. Sibiriulus altaicus Gulička, 1972. 30, gonopods (mesal view); 31, vulva (lateral view); 32, vulva (caudal view).