Author: (Heckel, 1840)
FBname: Demon eartheater
Remark: Redescription, based on Peruvian material, in Kullander (1986:147), with bibliography, diagnosis, description, distribution and illustration.
Comments: Typical of quiet water, occurring in freshwaters of estuaries and coastal swamps.  Digs into the muddy substrate looking for food which includes fruit seeds, crustaceans and insects (Ref. 35237).  Maximum length 25 cm TL (Ref. 7020).