Burmoniscus chuanyanensis Li, 2021

Zeng, Xue-Gang, Wang, Jin, Yang, Jing-Bo & Li, Wei-Chun, 2021, Integrative taxonomy reveals a new species of the genus Burmoniscus (Isopoda, Philosciidae) from the Xuefeng Mountains, China, ZooKeys 1055, pp. 123-134 : 123

publication ID

https://dx.doi.org/10.3897/zookeys.1055.66879

publication LSID

lsid:zoobank.org:pub:2F1813FB-2C95-4005-BDE2-310C76E3E314

persistent identifier

https://treatment.plazi.org/id/58335AE6-9B0B-4668-B726-9B4328A20DD9

taxon LSID

lsid:zoobank.org:act:58335AE6-9B0B-4668-B726-9B4328A20DD9

treatment provided by

ZooKeys by Pensoft

scientific name

Burmoniscus chuanyanensis Li
status

sp. nov.

Burmoniscus chuanyanensis Li sp. nov.

Figures 2A-E View Figure 2 , 3A-M View Figure 3

Type material.

Holotype. China, male, Hunan Province, Xuefeng Mountains, Chuanyanshan National Forest Park (27°42'N, 110°34'E), alt. 391 m, 14 July 2019, Wei-Chun Li and Jing-Bo Yang leg., Prep. slide no. L2007-2009, DNA no. CYS2007-2011.

Paratypes. One male, 23 females, same collection data as holotype.

Diagnosis.

Male pleopod 1 endopodite with distal portion bearing bilobated apical tip with one subapical spine-like projection between lobes.

Description.

Body length of male 7.5 mm, of females 3.5-9.0 mm. Body elliptic. Color brown with pale muscle spots on dorsal surface in preserved specimens with ethanol (Fig. 2A View Figure 2 ). Telson triangular, lateral margin slightly concave, apex acute (Fig. 2B View Figure 2 ). Uropod protopodite almost twice as long as wide, exopodite approximately twice as long as endopodite (Fig. 2B, C View Figure 2 ).

Antennule. Composed of three articles, distal article bearing apical set of small aesthetasc (Fig. 3A View Figure 3 ). Antenna. Flagellum slightly shorter than fifth article of peduncle, scattered with tiny setae, length ratio of flagellar articles 6: 4: 3, third article ending with slender apical organ, slightly longer than third article (Fig. 3B View Figure 3 ). Mandibles. Left mandible bearing 2+1 penicils, right mandible with 1+1 penicils, molar process consisting of single plumose seta (Fig. 3C, D View Figure 3 ). Maxillule. Inner lobe with two stout penicils and small posterior point; outer lobe with 4 + 6 (5 apically cleft) teeth (Fig. 3E View Figure 3 ). Maxilla. Distally divided into two lobes with blunted rounded margins; inner lobe covered with thick setae (Fig. 3F View Figure 3 ). Maxilliped. Endite nearly rectangular, subapically with penicil; palp two-segmented (Fig. 3G View Figure 3 ).

Pereopods (Fig. 3H, I View Figure 3 ). Pereopod 1 and pereopod 7 without sexual dimorphism.

Pleopods, sexual differentiation. Male pleopod 1 exopodite heart-shaped, outer margin sinuous, inner margin broadly rounded, distal portion triangular bearing one row of small setae on inner margin (Fig. 3J View Figure 3 ); endopodite with broad basal part, narrowed towards apical tip, apical tip bilobed, subapical part bearing one spine-like projection on middle (Fig. 3K View Figure 3 ). Pleopod 2 exopodite slightly concave on outer margin, inner margin slightly convex and covered one line of small setae at distal portion (Fig. 3L View Figure 3 ); endopodite longer than exopodite, with distal article long and narrowed apically (Fig. 3M View Figure 3 ).

Etymology.

The new species is named after the national forest park where the type specimens were collected.