The Hemiancistrus megacephalus lives in the demersal, freshwater environment.
Hemiancistrus megacephalus, and the species described herein as P. sidereus form a well-diagnosed (decay index = 5), monophyletic clade. Armbruster (2004a) places Lithoxancistrus and Guyanancistrus into the synonymy of Pseudancistrus and transfers Hemiancistrus megacephalus to Pseudancistrus. More
Hemiancistrus megacephalus on Fish Mapper TSN 680122 (Taxonomic Serial Number) Retrieved on from the Integrated Taxonomic Information System online database. This is a cached copy. More
大头半鲶 in Mandarin Chinese
大頭半鯰 in Mandarin Chinese