Protracheoniscus curvatus Jiang and Li, 2025
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publication ID |
https://doi.org/10.1080/00222933.2025.2552253 |
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persistent identifier |
https://treatment.plazi.org/id/03B987FE-FFE7-FFD8-558A-FB60FB75FC50 |
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treatment provided by |
Plazi |
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scientific name |
Protracheoniscus curvatus Jiang and Li |
| status |
sp. nov. |
Protracheoniscus curvatus Jiang and Li View in CoL , sp. n.
http://zoobank.org:act: FB1E6769-F484-497E-B241-464C24E7C14E
( Figures 1 View Figure 1 (B), 2, 5, 6)
Material examined
Holotype. 1 male, CHINA: Xinjiang Uygur Autonomous Region , Ili Kazakh Autonomous Prefecture County ( 44.13°N, 81.40°E), 21 March 2022, leg. Sheng Du, no. 20220321002 GoogleMaps . Paratypes. 3 females 20220607101, 20220321010, 20220607101, same as holotype; 4 males nos. 20240831001, 20220321009, 20240831103, same as holotype except collected data.
Diagnosis
Pereopods 5–6 propodus with line of curved setae, carpus covered with setae on rostral Antennula second article with several spines on its surface. Male pleopod 1 inner margin with 1 setae; endopod bearing a tuft of setae at apex.
Description
Body elongated, convex, colour in alcohol black with white margin ( Figure 1 View Figure 1 (B)). Dorsal surface smooth long and tricorn-shaped scale-setae ( Figure 5 View Figure 5 (B)). Noduli laterales on pereonites 3–4 farther from margins than those on pereonites 1–2 and 5–7 ( Figures 4 View Figure 4 (A)) and 5(G)). Cephalon with small medial
HISTORY HISTORY
(F) maxilliped; (G), position of noduli lateralis ( holotype, male). Scale bars: 0.5 mm.
Antenna of medium length, reaching pereonite 3; flagellum with 2 articles, proximal article approximately
HISTORY backwards ( Figures 1B View Figure 1 and 5A View Figure 5 ). Pereopod 1 bearing brush of long bifurcated setae on its carpus merus ( Figure 5D View Figure 5 ). Pereopods 5–6 propodus with 1 line of curved setae, carpus rostral surface several setae ( Figure 5 View Figure 5 (E,)). Pereopod 7 ischium fringed with setae, sternal margin with shallow ( Figure 5 View Figure 5 (G)).
Left mandible with molar process carrying 2 teeth and lacinia mobilis with straight edge; lobe setae with 4 plumose penicils ( Figure 6 View Figure 6 (B)). Right mandible with molar process carrying 3 teeth and mobilis with 2 teeth; lobe covered by setae with 5 plumose penicils; pars molaris consisting of plumose setae on a short common socket ( Figure 6 View Figure 6 (C)). First maxilla with outer branch bearing 4 + inner branch with 2 long penicils and a triangular posterior point ( Figure 6 View Figure 6 (E)). Second maxilla bilobate and setose ( Figure 6 View Figure 6 (D)); Maxilliped endite rectangular with 4 spurs, palp slender ( Figure 6 View Figure 6 (
Pleopods 1–5 exopods with monospiracular internal lungs ( Figure 5 View Figure 5 (H–L)). Male pleopod 1 exopod outer margin slightly sinuous, bearing several setae near middle and apex, inner margin with 1 line endopod with broad basal part, narrowed towards apex, bearing a tuft of setae ( Figure 5 View Figure 5 (H)). exopod triangular, bearing 1 line of setae on outer margin; endopod longer than exopod, distal article long ( Figure 5 View Figure 5 (I)). Pleopods 3–5 exopods bearing 1 line of dense setae on outer margin ( Figure 5 View Figure 5 (J–L)) triangular, almost twice as wide as long, lateral margins slightly concave, posterior apex pointed; exopod 4.8–5.0 times as long as protopod ( Figure 5 View Figure 5 (A)).
Size
Males 18–28 mm, females 18–19 mm.
Distribution
China ( Xinjiang).
Etymology
From the Latin curvatus = curved. The new species name refers to the pereopods 5 and 6 propodus line of curved setae. We suggest the Chinese common name ‘弯刺原气管虫’.
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.
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