Acanthemblemaria Aspera (Paperback)

High Quality Content by WIKIPEDIA articles! The roughhead blenny, Acanthemblemaria aspera, is a member of the blenny family native to the tropical Western Atlantic Ocean. The standard length of the adult male is 19 millimetres (0.75 in) and the female is 21 millimetres (0.83 in). The common name blenny is ambiguous at best, as it has been applied to several families of perciform marine, brackish and some freshwater fishes all sharing similar morphology (shape) and behaviour. There are six families considered "true blennies," all grouped together under the suborder Blennioidei; its members are referred to as blennioids. There are approximately 833 species in 130 genera within the suborder.