Polyporogaster schnitnikowi Lignau, 1929

Dyachkov, Yurii V., 2020, New data on the family Himantariidae Bollman, 1893 (Chilopoda: Geophilomorpha) from Kazakhstan, Ecologica Montenegrina 28, pp. 61-66 : 64

Polyporogaster schnitnikowi Lignau, 1929

Figs 1 , 21 .

Diagnosis. Body length 60 mm, 81 leg-bearing segments, median arc shallow ( Fig. 21 ), with 27 denticles. Coxopleural pores (5 on each side) opening in fossae on dorsal side, covered by lateral margin of tergite.

Remarks. This species is known from the original description only (Karatal River, vicinity of Balkhash Lake, Almaty Region) which is very succinct and provided with schematic figures of head (ventral view) and labrum. According to the original description this species is very close to the P. porosa ; differs by shape of labral median arc only.

Figures

Figure 1. Distribution of the Himantariidae members in Kazakhstan: square – Bothriogaster signata; star – Polyporogaster porosa; triangle – Polyporogaster schnitnikowi; oval – Stigmatogaster sp. White marks indicate new data, black marks concern literature data.

Figures 2–21. Bothriogaster signata (Kessler, 1874): 2 – head and first segment, ventral view; 3 – cephalic plate, ventral view; 4 – maxillary complex, ventral view; 5 – some anterior sternites, ventral view; 6 – terminal part of body (male), ventral view; 7 – same, dorsal view; Polyporogaster porosa (Sseliwanoff, 1881): 8 – head and two anterior segments, ventral view; 9 – labrum, ventral view; 10 – maxillary complex, ventral view; 11 – some anterior sternites, ventral view; 12 – terminal part of body (male), ventral view; 13 – same, dorsal view; Stigmatogaster sp.: 14 – head and two anterior segments, ventral view; 15 – labrum, ventral view; 16 – maxillary complex, ventral view; 20 – same, schematic draw, ventral view; 17 – some anterior sternites, ventral view; 18 – terminal part of body (female), ventral view; 19 – same, dorsal view; Polyporogaster schnitnikowi Lignau, 1929 (after (Lignau 1929b)): 21 – labrum, ventral view. Scale: 1–14 – 0.2 mm, 15–20 – 0.1 mm; 21 – without scale.