Stone moroko

Stone moroko
Conservation status
	; Least Concern (IUCN 3.1)
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Cypriniformes
Suborder:	Cyprinoidei
Family:	Gobionidae
Genus:	Pseudorasbora
Species:	P. parva
Binomial name
	Pseudorasbora parva; (Temminck & Schlegel, 1846)
Synonyms
	Leuciscus parvus Temminck & Schlegel, 1846 ; Leuciscus pusillus Temminck & Schlegel, 1846 ; Micraspius mianowskii Dybowski, 1869 ; Pseudorasbora altipinna Nichols, 1925 ; Pseudorasbora depressirostris Nichols, 1925 ; Pseudorasbora fowleri Nichols, 1925 ; Pseudorasbora monstrosa Nichols, 1925 ; Pseudorasbora parva parvula Nichols, 1929 ; Pseudorasbora parva tenuis Nichols, 1929 ;

The stone moroko (Pseudorasbora parva), also known as the topmouth gudgeon, is a species of freshwater ray-finned fish belonging to the family Gobionidae, the gudgeons. This species is native to Asia, but has been introduced and is now considered an invasive species in Europe and North America. The fish's size is rarely above 8 cm, and usually 2 to 7.5 cm (0.79 to 2.95 in) long.