Plutomurus danialensis Barjadze, Kováč & Mehrafrooz Mayvan, 2024
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publication ID |
https://doi.org/ 10.11646/zootaxa.5463.4.6 |
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publication LSID |
lsid:zoobank.org:pub:31C63850-1899-4C2A-9BE7-950B9F9ED88D |
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DOI |
https://doi.org/10.5281/zenodo.11612757 |
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persistent identifier |
https://treatment.plazi.org/id/DB28A21D-9211-FF83-FF18-F99EFBA7F967 |
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treatment provided by |
Plazi |
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scientific name |
Plutomurus danialensis Barjadze, Kováč & Mehrafrooz Mayvan |
| status |
sp. nov. |
Plutomurus danialensis Barjadze, Kováč & Mehrafrooz Mayvan sp. nov.
( Figs 5 View FIGURES 4–5 , 18–29 View FIGURES 18–25 View FIGURES 26–28 View FIGURE 29 )
Type locality. Iran, Mazandaran Province, Abbas Abad County, close to the Danial Village, Danial Cave , 203 m a.s.l.
Type material. Holotype: Female on slide, dark zone of the main horizontal corridor with permanent subterranean stream, hand collecting, 18.x.2023, leg. M. Mehrafrooz Mayvan, code IRADAN 20231018-101 ( IZISU) ; Paratypes: 10 specimens on separate slides with the same data as holotype : 5 specimens on separate slides with code IRADAN 20231018-102, 104, 105, 107, 109 ( IZISU) ; 3 specimens on separate slides with code 20231018- 103, 106, 108 ( UPJŠ) ; 2 specimens on separate slides with code IRADAN 20231018-110, 111 ( ZMFUM) .
Description. Body length 1.80–3.48 mm ( Fig. 5 View FIGURES 4–5 ).
Colour. Body grey coloured when alive.
Scale distribution. Scales are present dorsally on Ant. I–II, head, Th. and Abd., all leg segments, both sides of ventral tube and ventral side of furca.
Head. Ratio of antennal length: head length as 3.35–4.81. Ant. III–IV annulated without scales. Eye patch with 6 well developed eyes ( Fig. 26 View FIGURES 26–28 ). Head dorsally with 1 unpaired (A 0), and 7 paired Mc: 2 anterior (A 2, A 3), 2 interocular (S 2, S 4) and 3 postocular (Pa 3, Pa 4, Pa 5) distributed as in Fig. 26 View FIGURES 26–28 . Posterior margin of head with a row of equal mesochaetae. Prelabral and labral chaetae smooth: prelabral chaetae 4 (2+2) ( Fig. 18 View FIGURES 18–25 ); labrum with 554 papillate chaetae as typical for genus.
Body chaetotaxy. Dorsal bothriotrichal formula as 2,1/0,0,1,2,0 ( Figs 27–28 View FIGURES 26–28 ). Dorsal Mc formula 5,2/3,3,4,5,2– 3 ( Figs 27–28 View FIGURES 26–28 ). Thoracic macrochaetotaxy as in Fig. 27 View FIGURES 26–28 . Th. II with 3 anterior (m 3, m 4, m 5) and 2 posterior (p 3, p 5) Mc; Th. III with 2 posterior (p 3, p 4) Mc. Abdominal macrochaetotaxy as in Fig. 28 View FIGURES 26–28 : Abd. I–II each with 3 posterior (m 2, m 3, m 4) long Mc respectively; Abd. III with 4 long Mc: 2 anterior (m 2, m 6) and 2 posterior (p 1, p 6) and one short Mc (p 7) as typical for genus; Abd. IV with 5 posterior Mc: 2 long (C 6, E 3) and 3 short Mc (A 6, D 3, T 7) ( Fig. 28 View FIGURES 26–28 ); Abd. V with 2–3 posterior (p 2, p 4 or p 2, p 3, p 4) long Mc ( Fig. 28 View FIGURES 26–28 ). For macrochaetal and socket proportions see Table 1 View TABLE 1 .
Legs. Hind legs with well–developed trochanteral (9–26 chaetae) and femoral (10–27 chaetae) organs ( Fig. 19 View FIGURES 18–25 ), with several elongated chaetae. Posterior side of tibiotarsus III with 2 outstanding inner, apical and basal spine–like chaetae (arrows in Fig. 25 View FIGURES 18–25 ) with tibiotarsal spine formula as 002.Apical spine–like chaeta on tibiotarsus III is always shorter and wider than basal spine-like chaeta. Ratio of apical spine–like chaeta: basal spine–like chaeta as 0.46– 0.59. Tenent hair clavate ( Figs 20 View FIGURES 18–25 , 29 View FIGURE 29 ). Ratio of claw III: Empodium III: tenent hair III as 1.76–2.60: 1.00–1.46: 1. Inner edge of claw on all legs with one characteristically minute proximal unpaired tooth (as a in Figs 20 View FIGURES 18–25 , 29 View FIGURE 29 ) and 2–4 distal unpaired teeth, 3–5 in total (as b, c in Fig. 20 View FIGURES 18–25 ; as b, c, d in Fig. 29 View FIGURE 29 ). Claw with long pseudonychia ( Fig. 20 View FIGURES 18–25 ). Ratio of pseudonychium III: claw III length internally as 0.39–0.56: 1. Empodium lanceolate, tapered, with 2 internal lamellae bearing 0–3 teeth ( Figs 20 View FIGURES 18–25 , 29 View FIGURE 29 ).
Ventral tube. It has numerous chaetae: 9–30 anterior, 23–34 posterior and 20–30 lateral smooth chaetae respectively ( Fig. 22 View FIGURES 18–25 ). Tenaculum. Rami with 4 + 4 teeth, corpus with 1 smooth chaeta ( Fig. 21 View FIGURES 18–25 ).
Furca. Ratio manubrium: dens: mucro as 4.35–5.94: 6.27–10: 1. Outer margin of basal segment of dens with 3–5 apically acuminate macrochaetae ( Fig. 24 View FIGURES 18–25 ). Inner edge of dens with well differentiated spines ( Fig. 24 View FIGURES 18–25 ): Spines on basal segment of dens with 1 or 2 large spines apically; Spines on apical segment of dens forming a single row extending maximum 1 / 3 or 1 / 2 of length of apical segment of dens; proximal edge of apical segment of dens always with small spines and intercalated between long spines, terminal one is always the largest long spine in a row ( Fig. 24 View FIGURES 18–25 ). Dental formula is variable: 3–10 I–II /1–7 I 1–3 I(II) 0–3 0–I 0–4 0–I 0–2 0–I 0–2 0–I 0–2 0–I (Arabic numbers represent small spines; Roman numerals in bold and Italics represent large spines, on basal/apical segments of dens) ( Fig. 24 View FIGURES 18–25 ). Mucro with 2 basal, 0 intermediate and 2 distal teeth (202 formula) ( Fig. 23 View FIGURES 18–25 ). Measurements of some morphological characters are given in Table 1 View TABLE 1 .
Variation. Variable characters are given in Table 2 View TABLE 2 .
Discussion. Differential characters with the similar species are provided in Discussion section in the previous species description.
Etymology. The specific name originates from the type locality, the Danial Cave in northern Iran.
Ecology. It is probably a troglophilous species, considering presence of pigmented body and 6+6 eyes. It lives in dark zone of the cave.
Distribution. This species is known only from the single cave (type locality).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.