Koreoniscus racovitzai (Arcangeli, 1927)

Jiang, Chao, Zhong, Jing, Wang, Zhidong, Li, Weichun & Huang, Luqi, 2024, Taxonomic study on the genus Mongoloniscus Verhoeff, 1930 (Isopoda, Agnaridae) from China: morphological and phylogenetic analyses, ZooKeys 1202, pp. 229-253 : 229-253

publication ID

https://doi.org/ 10.3897/zookeys.1202.113560

publication LSID

lsid:zoobank.org:pub:B493B7C6-9977-4A6C-B9D4-D4A865468DC8

DOI

https://doi.org/10.5281/zenodo.11271064

persistent identifier

https://treatment.plazi.org/id/2F9481A7-3D79-5D0D-A56B-B0FFD30EA605

treatment provided by

ZooKeys by Pensoft

scientific name

Koreoniscus racovitzai (Arcangeli, 1927)
status

 

Koreoniscus racovitzai (Arcangeli, 1927) View in CoL

Porcellio (Lucasius) Racovitzai Arcangeli, 1927: 228 , fig. 7.

Koreoniscus racovitzai View in CoL : Verhoeff 1937: 421; Flasarova 1972: 102–111, figs 24–47.

Koreoniscus Racovitzai View in CoL : Arcangeli 1952: 301.

Mongoloniscus chevronus Yang & An, 2021: 265–274, figs 1–3. syn. nov. View in CoL View Cited Treatment

Examined material.

China: 19 spms ( 20200912002 20200912004 , - 7, 20200913001 , - 4, 20200914001 20200914003 ), Jilin Province, Ji’an, Koguryo Archaeological Site Park (41.1210 ° N, 126.1845 ° E), 210 m asl., 12–14. ix. 2020, coll. Chao Jiang GoogleMaps ; 8 spms ( 20200912011 20200912016 ), Daqiangfenggou (40.9276 ° N, 125.9505 ° E), 330 m asl., 12. ix. 2020, coll. Chao Jiang GoogleMaps . 10 spms ( 20210904027 20210904034 ), Liaoning Province, Huanren Manchu Autonomous County, Zhangyue Park (41.2600 ° N, 125.3480 ° E), 270 m asl., 4. ix. 2021, coll. Chao Jiang GoogleMaps ; 1 spm ( 20210905002 ), Gucheng Town (41.4764 ° N, 125.3832 ° E), 380 m asl., 5. ix. 2021, coll. Chao Jiang GoogleMaps ; 1 spm ( 20210907033 ), Xinbin Manchu Autonomous County (41.7193 ° N, 124.7979 ° E), 310 m asl., 7. ix. 2021, coll. Chao Jiang GoogleMaps .

Remarks.

In the present study, we identified the above specimens by integrating morphological characters and COI sequences. The results demonstrate that not only their morphological traits were the same as M. chevronus , but also the COI sequences were 100 % identical to the sequence from the type material of M. chevronus (GenBank: MW 792415 View Materials ) ( Yang and An 2021). Thus, we used these materials to analyze the relationships between M. chevronus and the other species.

Morphologically, this species is distinctly differing from other Mongoloniscus species by its pereonite epimera with a “ convex-concave-convex ” margin. It is noteworthy that this trait is an essential diagnostic character of Koreoniscus . Based on further comparison of the descriptions and illustrations of M. chevronus ( Yang and An 2021: figs 1–3) and K. racovitzai ( Flasarová 1972: figs 24–31; Kwon 1993: fig. 11), in addition to the above results obtained through phylogenetic analyses (the genetic distance between M. chevronus and Koreoniscus racovitzai was nearly 0 %, Suppl. material 1: table S 2; M. chevronus and Koreoniscus racovitzai formed a clade with high support, Fig. 2 View Figure 2 ), and with the external morphology and the coordinates of noduli laterales on pereonites, we consider M. chevronus Yang & An, 2021 as junior synonym of Koreoniscus racovitzai (Arcangeli, 1927) .

Distribution.

China (Liaoning, Jilin), Japan, Korea.

MW

Museum Wasmann

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Isopoda

Family

Agnaridae

Genus

Koreoniscus

Loc

Koreoniscus racovitzai (Arcangeli, 1927)

Jiang, Chao, Zhong, Jing, Wang, Zhidong, Li, Weichun & Huang, Luqi 2024
2024
Loc

Mongoloniscus chevronus

Yang L & An J 2021: 274
2021
Loc

Koreoniscus racovitzai

Flasarová M 1972: 102
Koreoniscus racovitzai : Verhoeff 1937: 421; Flasarova 1972: 102–111 , figs 24–47.
1972
Loc

Porcellio (Lucasius) Racovitzai Arcangeli, 1927: 228

Porcellio (Lucasius) Racovitzai Arcangeli, 1927: 228 , fig. 7.
Loc

Koreoniscus Racovitzai

Koreoniscus Racovitzai : Arcangeli 1952: 301.