A total of 14 species in 8 genera are reported from South America and Antarctica. The generic synonymies of
Pseudoscalibregma Ashworth are clarified.
Scalibregmides Hartmann-Schröder is resurrected from synonymy and redefined. Six species are new to science:
Asclerocheilus tropicus,
A. ashworthi,
Hyboscolex equatorialis,
Oligobregma notiale,
Pseudoscalibregma usarpium, and
Scalibregmides peruanum.
Pseudoscalibregma collare Levenstein, 1975 is redescribed and transferred to the genus
Oligobregma, with its junior homonym,
P. bransfieldia collaris Hartman, 1978, being renamed and redescribed as
O. hartmanae.
Sclerocheilus antarcticus Ashworth, 1915 is redescribed. A revised scheme to the scalibregmatid genera is presented, along with a list of valid species.
Proscalibregma linea Hartman, 1967 has been determined to belong to the Opheliidae, while
Scalispinigera oculata Hartman, 1967, and
S. cirrata Hartman and Fauchald, 1971 are related to the Hesionidae.
