Odorrana liboensis Luo, Wang, Xiao, Wang & Zhou 2021

Odorrana liboensis Luo, Wang, Xiao, Wang & Zhou, 2021 Related literature. Luo et al. (2021); Luong et al. (2022); Mo et al. (2022). Type materials. Holotype. GZNU 20180608004, adult male, from Maolan National Nature Reserve (25.481711°N, 108.078003°E; 715 m a. s. l.), Libo County, Guizhou Province, China. Paratypes. (n = 13): GZNU 20180608002, GZNU 20180608003, GZNU 20180608006, GZNU 20180608007, GZNU 20180608009, GZNU 20180608010, GZNU 20180608011, GZNU 20180608012, adult males and GZNU 20180815001, GZNU 20160802001, GZNU 20160802002, GZNU 20160802003, GZNU 20160729009, adult females, from the same locality as the holotype. Additional specimens. SYS a 003469, adult male, from Xialei Town, Daxin County, Guangxi Zhuang Autonomous Region, China; SYS a 008943, SYS a 008944, SYS a 008945, SYS a 008946, adult males, from Liunan District, Liuzhou City, Guangxi Zhuang Autonomous Region, China; SYS a 009224, adult male, from Masi Town, Xincheng County, Guangxi Zhuang Autonomous Region, China; and SYS a 008240, adult female, from Maolan National Nature Reserve, Libo County, Guizhou Province, China. Variation. Our morphological analyses of additional specimens of this species provided new morphometric data (Table 2) and suggested the overall morphology of these specimens is generally consistent with previous descriptions (Luo et al. 2021; Mo et al. 2022). However, a few morphological revisions were also suggested. Our morphological examination revealed pineal ocellus visible in SYS a 003469, SYS a 008240, SYS a 008945 and SYS a 009224, tibiotarsal articulation exceeding nostril when hind-limb stretched along the side of body in SYS a 003469, SYS a 008945 and SYS a 009224 and fingers II – IV and toes I – V with lateroventral grooves in all additional specimens, which differ from previous descriptions of pineal ocellus invisible, tibiotarsal articulation reaching the region between eye and nostril and fingers and toes, except finger I with circum-marginal grooves (Luo et al. 2021; Mo et al. 2022), respectively. In addition, our morphological examination revealed dorsolateral folds with granular tubercles present in adult females and present or absent in adult males, which were never described in previous descriptions (Luo et al. 2021; Mo et al. 2022), offering a new diagnostic character for this species. Revised diagnosis. This species can be diagnosed from other species of Odorrana lipuensis group by the combination of following morphological characteristics: (1) body size moderate, SVL 43.7–53.8 mm in adult males (n = 12) and 48.8–58.2 mm in adult females (n = 11); (2) relative finger length I <II; (3) dorsolateral conical spines absent or sparse; (4) dorsolateral folds present in adult females and present or absent in adult males; (5) bands on the dorsal surface of hind-limb unclear; and (6) nuptial pad present on finger I. Distribution. This species is known from several localities in China, including: (1) Maolan National Nature Reserve, Libo County, Guizhou, (2) Liunan District, Liuzhou City, Guangxi, (3) Masi Town, Xincheng County, Guangxi, (4) Xialei Town, Daxin County, Guangxi and (5) Nongyao Village, Napo County, Guangxi (Fig. 1). This species may also occur in Nam Xuan Lac HSCA, Bac Kan, Vietnam (Fig. 1, see Remarks below). Remarks. Luong et al. (2022) reported the record of Odorrana lipuensis from Nam Xuan Lac HSCA, Bac Kan, Vietnam based on the morphological data of two specimens. However, after reviewing descriptions and photos provided in this literature, we suspected that this record should be O. liboensis according to the revised diagnosis above. As the molecular data of these two specimens are not yet available, we tentatively noted this record as unconfirmed here (Fig. 1) and future studies should clarify the taxonomic affiliation of this record, based on multiple lines of evidence.