A revision is presented on the variability of the ornamentation and other extermal morphological aspects of Gorgonocephalus chilensis. The samples were obtained along the period of 1962 to 1972 by the R/V "Hero" and "Eltanin" (USARP) and by the R/V "Almirante Saldanha" from the Brazilian Navy.
Ophiuroids; Morphology; Gorgonocephalus chilensis; Antartic region