Aphyocypris pulchrilineata, a new miniature cyprinid species (Teleostei: Cypriniformes: Cyprinidae) from Guangxi, China

Aphyocypris pulchrilineata sp. nov., a miniature cyprinid fish, was described from a small branch of the Hongshuihe River, which belongs to the Pearl River drainage. The new species can be distinguished from the species of Yaoshanicus, Nicholsicypris, Pararasbora and some species of Aphyocypris (Aphyocypris chinensis and Aphyocypris kikuchii) by the lack of a lateral line, either complete or partial. The new species is most similar to Aphyocypris lini morphologically. However, A. pulchrilineata lacks a large black spot on the caudal-fin base which A. lini has. A key to the species of the genus Aphyocypris is provided in the paper.