Author: (Rüppell, 1835)
FBname: Dembea stone lapper
Remark: There has been confusion between <i>G. dembeensis</i>, <i>G. johnstonii</i> and <i>G. hindii</i>. <i>G. johnstonii</i> is a junior synonym of <i>G. dembeensis</i>, but <i>G. hindii</i> differs in having a fully scaled predorsum, belly and chest; it does, however, share two important meristic and morphometric features with <i>G. dembeensis</i>: high number of scales in lateral line and vent located away from anal fin (Ref. 81639).
Comments: Commonly found in rapid parts of rivers and also on wave-washed rocky shores of Lake Victoria (Ref. 4903). Adheres to stones in swift water (Ref. 28714). Feeds on epilithic algae and lithophilic insects (Ref. 12526), scraped from the surface of rocks (Ref. 4903). 