First record of a ceramiaceous red algal species, Ceramium stichidiosum, from Magellanic Region, Chile

Abstract

A ceramiaceous red alga, Ceramium stichidiosum J. Agardh was found for the first time in waters of Magellanic Strait, Chile. Thalli are usually epiphytic on other macroalgae such as Mazzaella laminarioides (Bory) Fredericq and Sarcothalia crispata (Bory) Leister. They have fully corticated axes with alternate to dichotomous branches, straight tips and six periaxial cells per each axial cell. This report extends the distribution limit of C. stichidiosum from the X Región de los Lagos (42° 58'S; 74° 19'W) to the XII Región de Magallanes (53° 37'S; 70° 59'W). © 2007 Universidad de Concepción. Facultad de Ciencias Naturales y Oceanográficas.