a freshwater or marine fish with whisker-like barbels round the mouth, typically bottom-dwelling. (see wels) 鲇鱼。 (见 wels)
Order Siluriformes: many families, including the Eurasian family Siluridae (see wels) and the Callichthyidae (which contains a number of species that are popular in aquaria, in particular the genus Corydoras) 鲇形目: 多科,包括欧亚的鲇科((见 wels))及美鲇科(包括水族馆中常见的众多种,尤指兵鲇属)