A new species of Cichlasoma has been described from the MaranhÃ£o River drainage in northern Brazil.
Felipe Ottoni named the new species Cichlasoma zarskei in the latest issue of the journal Vertebrate Zoology.
The new species differs from congeners in having a combination of: a conspicuous posterior band of the longitudinal stripe, faintly spotted dorsal, anal and caudal fins, predorsal scales in three series, four anal-fin spines, reduction of the squamation between dorsal and anal-fins rays, presence of a hole between infraorbital plate 3+4 and plate 5 smaller, deeper entopterygoid, premaxilla with teeth on its entire tooth-bearing surface, simple spot on the caudal-fin base, fewer pleural ribs, more scales on the E1 series, shorter last dorsal-fin spine, shorter last anal-fin spine, longer snout, wider head and shorter lower jaw.
For more information, see the paper: Ottoni, FP (2011) Cichlasoma zarskei, a new cichlid fish from northern Brazil (Teleostei: Labroidei: Cichlidae). Vertebrate Zoology 61, pp. 335–342.