Results for “dermal”
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Colomesus asellusAmazon Puffer
Müller & Troschel, 1849
Max length128mm SL5in SLTank120 × 30cm48 × 12inTemp20–26°C68–79°FpH5.5–8.0This species is also referred to as 'South American puffer', 'SAP', 'Amazonian puffer', 'Peruvian puffer', or 'Brazilian puffer' in the ornamental trade. Within the genus Colomesus, C. asellus can be immediately identified by possessing a unique transverse row of dermal flaps across the chin which is absent in its congeners C. psittacus and C. tocantinensis.
Megalodoras uranoscopusGiant Raphael Catfish
authority not recorded
Max length700mm SL28in SLTank240 × 120cm96 × 48inTemp21.1–25°C70–77°FpHnot recordedThis species is also known by the vernacular name "ripsaw catfish" (U.S.) and was often referred to by the scientific name M. irwini, now considered a junior synonym of M. uranoscopus, in older literature. Within the family Doradidae the genus Megalodoras is considered most closely-related to Lithodoras, Centrodoras and Platydoras, respectively. Members of the family Doradidae can be distinguished from all other Siluriformes by possession of a unique infranuchal scute, a dermal bon...