Complete mitochondrial genome of Acrossocheilus stenotaeniatus (Osteichthyes: Cyprinidae).

Acrossocheilus stenotaeniatus (Cypriniformes, Cyprinidae) is a barred cyprinid fish that inhabits the flowing freshwaters in China. The complete mitochondrial genome sequence of A. stenotaeniatus is 16,594 bp in length and comprises 13 protein-coding genes, 22 tRNA genes, 2 rRNA genes, and 1 control region. The base composition of the genome is 31.22% A, 24.70% T, 28.02% C, and 16.07% G, which shows considerable bias to A + T (55.91%). Results of this study provide important DNA molecular data for further phylogenetic analysis and resource management not only for congeneric species but also for higher taxa of Cyprinid fish.

Catalogue of the type specimens in the fish collection of the National Zoological Museum, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.

A checklist of type specimens housed in the National Zoological Museum, Institute of Zoology, Chinese Academy of Sciences, Beijing, is presented for research and scientific communication. Included are 80 holotypes, 1 lectotype, 1 neotype, 402 paratypes and 17 syntypes of 99 species belonging to 28 families and 12 orders. With 60 species, Cypriniformes has the largest representation. All of the specimens were collected in China and neighboring countries in the past 90 years.

Revalidation and redescription of Brachymystax tsinlingensis Li, 1966 (Salmoniformes: Salmonidae) from China.

Brachymystax tsinlingensis Li, 1966 is revalidated and redescribed. It can be distinguished from all congeners by the following combination of characteristics: no spots on operculum; gill rakers 15-20; lateral-line scales 98-116; pyloric caeca 60-71. Unique morphological characters and genetic divergence of this species are discussed. This species has a limited distribution in several streams of the middle part of the Qinling Mountains in China. Methods for management and protection of B. tsinlingensis need to be re-evaluated.