Review of Brazilian jawfishes of the genus Opistognathus with descriptions of two new species (Teleostei, Opistognathidae).

ABSTRACT: A new species of jawfish, Opistognathusthionyi sp. n., is described from the Vitória-Trindade Chain and Fernando de Noronha Archipelago off Brazil, a disjunct distribution of ca. 1,800 km. Opistognathusthionyi and its allopatric Caribbean sister-species, Opistognathusmaxillosus, both have a wide, fan-like upper margin of the subopercular flap and mostly over-lapping meristic data. The new species differs from O.maxillosus in having the darkest spot on the spinous dorsal fin, when present, between spines 2-5, versus always present between spines 6-9, the buccal area surrounding the esophageal opening pale versus very dark and fewer oblique scale rows in longitudinal series (45-52 vs. 69-85). A second new species, Opistognathusvicinus sp. n.,

SUBMITTER: Smith-Vaniz WF 

PROVIDER: S-EPMC6224365 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature