Light's bitterling

Light's bitterling (Rhodeus lighti) is a temperate freshwater ray-finned fish belonging to the family Acheilognathidae, the bitterlings. It originates in Russia and China, from the Amur River basin to southern China. It was originally described as Pseudoperilampus lighti by H.W. Wu in 1931.

Light's bitterling
Conservation status
Least Concern  (IUCN 3.1)[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Cypriniformes
Suborder:	Cyprinoidei
Family:	Acheilognathidae
Genus:	Rhodeus
Species:	R. lighti
Binomial name
Rhodeus lighti (H. W. Wu, 1931)
Synonyms
Pseudoperilampus lighti H.W Wu, 1931

The fish is named in honor of zoologist S. F. Light (1886–1947), University of California, Berkeley, for his "constant help and encouragement" in Wu's zoological studies during their three-year association at the University of Amoy (now Xiamen University).^[2][3]

The fish reaches a length up to 7.2 cm (2.8 in), and is native to freshwater habitats with a temperature of 10 to 25 °C (50 to 77 °F). When spawning, the females deposit their eggs inside bivalves, where they hatch and the young remain in the bivalves until they can swim.^[4]