Description of a new genus and two new species of labeonine fishes from South China (Teleostei: Cyprinidae)

Abstract

A new genus and two new species are described from the Pearl River drainage in Guangxi Province, South China. Hongshuia, new genus, can be distinguished from all other Asian genera of the Labeonini by having a lower lip with its median lobe modified into a round, fleshy plate peripherally greatly protruded so as to form a ring-like fold that is posteromedially continuous with the mental region, and centrally sunken so as to form a round, flat, fleshy pad. This genus is distinct from all other Asian labeonine genera of the Garrina except for one newly described species of Parasinilabeo (P. longibarbus), Pseudocrossocheilus, and Sinocrossocheilus, in the presence of well-developed maxillary barbels. Hongshuia differs from the above three genera in the lower lip morphology, and further from both Pseudocrossocheilus and Qianlabeo in the number of pharyngeal tooth rows and from Sinocrossocheilus in the colour pattern. Two new species, H. banmo and H. paoli, differ in the distribution density and degree of development of papillae on the rostral fold, depth of indentations on the distal edge of the rostral fold, presence or absence of papillae on the lower lip, size and shape of tubercles on the tip of the snout and anterior portion of the lachrymal, length, position and colour pattern of the dorsal fin, and snout length.

Paraqianlabeo lineatus, a new genus and species of labeonine fishes (Teleostei: Cyprinidae) from South China

“…The new specimens had distinct phenotypes and could not be assigned confidently to any genus. These observations combined with the morphological and molecular analyses of previous studies (Zhang et al 2000;Zhang & Chen 2004;Zhang et al 2008;Zhang & Zhou 2012), convince us that a new genus is warranted for these specimens, which is described herein.…”

Phylogenetic placements of the barbin genera Discherodontus, Chagunius, and Hypselobarbus in the subfamily Cyprininae (Teleostei: Cypriniformes) and their relationships with other barbins

“…Therefore, it is necessary to know whether other cyprinine fishes traditionally not considered as barbins also possess fewer than three rows of pharyngeal teeth. Following further literature review, we identified the following genera with fewer than three rows of teeth: Carassius (1 row; Luo & Yue 2000), Carassioides (2 rows; Luo & Yue 2000), Discocheilus (2 rows; Zhang et al 2000), Discogobio (2 rows; Zhang et al 2000), Hongshuia (2 rows; Zhang et al 2008 Chen & Cao 2000). Among all the genera listed above, nine genera Probarbus, Catlocarpio, Scaphognathops, Carassius, Carassioides, Chuanchia, Gymnocypris, Oxygymnocypris and Platypharodon were sampled in the present study.…”

Phylogenetic relationships of the Chinese Labeoninae (Teleostei, Cypriniformes) derived from two nuclear and three mitochondrial genes

“…Since Sinocrossocheilus was erected by Wu (1977), 10 species have been consecutively described: S. guizhouensis , S. tridentis , S. microstomatus , S. labiatus , S. longibullus , S. nigrovittatus , S. papillolabrus , S. bamaensis , S. liuchengensis and S. megalophthalmus (Cui & Chu 1986; Wang & Chen 1989; Su et al, 2003; Chen et al 2006). Hongshuia was recently erected by Zhang (2008). Two species previously assigned to Sinocrossocheilus ( S. microstomatus and S. megalophthalmus ) were later placed in Hongshuia by Yuan et al .…”

“…(2000) on basis of morphology, several new genera (e.g. Hongshuia , Qianlabeo and Stenorhinchus ) were erected (Zhang & Chen 2004; Zhang & Fang 2005; Li et al, 2006; Huang 2007; Zhang et al, 2008), and the generic assignment of some species were rearranged (Yuan et al 2008). The description of these new genera and re‐division of species were mainly based on the oromandibular morphology, without any input from molecule‐based phylogenetic evidence.…”