Glyceriformia Fauchald, 1977 (Annelida: “Polychaeta”) from the SW Atlantic Shelf, between 30º and 45º S

Abstract

We document the presence of 14 species (seven Glyceridae and seven Goniadidae) in the transitional zone between warm and cold temperate domains of the southwestern Atlantic (30º-45º S). This doubles the number of species known to occur in the region and upgrades previous records, many of them unreliable. Glycinde henningi sp. nov. is herein described as new to science. Illustrated descriptions and identification keys are presented for the glyceriform taxa from the region. Ten of the species are asociatedwith warm-temperated, and two with cold or cold-temperate waters; the remaining two are eclectically distributed in temperate waters. Nine of the species occur in the northwestern and southwestern Atlantic, with an apparent distributional gap in the tropics, consistently with what has been observed in other groups of marine organisms.