Medio- and infralittoral Pycnogonida collected during the I.I.O.E. near the landbase on Nossi-Be, Madagascar

Fourteen identifiable species of Pycnogonida are recorded from the Nossi-Bé area, from the intertidal zone down to some 8 meters. The collection comprises 2 new species ( Nymphopsis curtiscapus and Nymphon biformidens), whereas the following 6 species are recorded for the first time from this general region: Ammothella biunguiculata (Dohrn, 1881), Rhynchothorax mediterraneus Costa, 1861, Achelia sawayai Marcus, 1940, Anoplodactylus pycnosoma (Helfer, 1938), A. turbidus Stock, 1974, and Endeis biseriata Stock, 1968.