Fourteen new records of marine algae fom the coast of Oaxaca, Mexico a
re reported: Caulerpa racemosa (Forsskal) J. agardh, Caulerpa ambigua
Okamura, Derbesia Marina (Lyngbye) Kjellman, Polyphysa parvula (Solms-
Laubach) Schnetter et Bula-Meyer, Amphiroa beauvoisii Lamouroux, Peyss
onelia pacifica Kylin, Rhodymenia divaricata Dawson, Chondria decipien
s Kylin, Polysiphonia decussata Hollenberg, Champia parvula (C. Agardh
) Harvey, Dermonema frappieri (Mont. ef Millard) Borgesen, Pleonospori
um mexicanum Dawson, Feldmannia elachistaeformis (Heydrich) Pham Hoang
and Lobophora variegata (Lamour.) Womersley. Data concerning the morp
hology, phenology, the nature of the habitat and the localities are pr
esented. Codium giraffa Silva, not recorded since it's original descri
ption, is also reported.