A new species, Hedyotis nanlingensis from Guangdong province, China, is described and illustrated. It is morphologically similar to H. nankunshanensis but differs in the smaller and more slender habit, the sessile leaves, the usually two to three secondary veins on each side of the midvein, the inflorescences with monochasial branching and the shorter style in the long-styled flowers. DNA barcoding analysis demonstrates that all accessions from H. nanlingensis form a monophyletic lineage closely related to H. cantoniensis.
Species of the genus Crypsithyris Meyrick, 1907 in Guangdong Province, South China are reviewed. Crypsithyris nanlingensis Huang, Hirowatari & Wang, sp. nov., is described and illustrated, and C. sp. and C. japonica Petersen & Gaedike, 1993, which are new records for China, also are described and illustrated. Biological notes for C. japonica and C. sp. are provided, and a key to the Crypsithyris of South China is presented.
Traccatichthys tuberculum, new species, is herein described from the Jian-Jiang, a coastal river in Guangdong Province,South China. Photo by Bosco P.L. Chan. This new species differs from all other Chinese congeners (i.e., T. pulcher and T.zispi) in interorbital width, caudal-peduncle length, and pectoral-fin length. It, together with T. zispi, lacks the colorpatterns of the dorsal and anal fins in T. pulcher, and differs from T. zispi in preanal length. Traccatichthys tuberculum,together with all other Chinese congeners, is distinct from the Vietnamese species, T. taeniatus, in the shape of the black bar on the caudal-fin base, and the color pattern of the anal fin.
Traccatichthys tuberculum, a new species of nemacheiline loach from Guangdong Province, South China (Pisces: Balitoridae)