Five species of Nereididae collected from the Capbreton Canyon, southeaster
n part of the Bay of Biscay, in deep waters (480-1040 m) are described. Thr
ee species are new to the Atlantic: Nicon sinica Wu and Sun, 1979, Ceratoce
phale cf.pacifica (Hartman, 1960) and C. cf. andaman Hylleberg and Nateewat
hana, 1988; and one, Ceratocephale loveni Malmgren, 1867 is new record for
the Iberian fauna. The distributional range for Eunereis longissima (Johnst
on, 1840) in the Iberian region is extended.