DNA-assisted identification of Caulerpa (Caulerpaceae, Chlorophyta) reduces species richness estimates for the Eastern Tropical Pacific Author Fernández-García, Cindy Escuela de Biología, Centro de Investigación en Ciencias del Mar y Limnología (CIMAR), Universidad de Costa Rica, San Pedro, San José, 11501 - 2060, Costa Rica. Author Wysor, Brian Department of Biology, Marine Biology & Environmental Science, Roger Williams University, 1 Old Ferry Road, Bristol, Rhode Island 02809, USA. Author Riosmena-Rodríguez, Rafael Programa de Investigación en Botánica Marina, Departamento de Biología Marina, Universidad Autónoma de Baja California Sur, Carretera al sur Km 5.5, La Paz, C. P. 23080, México. Author Salamanca, Enrique Peña- Departamento de Biología, Facultad de Ciencias Naturales y Exactas, Universidad del Valle, Cali, A. A. 25360, Colombia. Author Verbruggen, Heroen School of BioSciences, University of Melbourne, Victoria 3010, Australia. & Phycology Research Group, Ghent University, Krijgslaan 281 (S 8), 9000 Ghent, Belgium. text Phytotaxa 2016 2016-03-14 252 3 185 204 http://dx.doi.org/10.11646/phytotaxa.252.3.2 journal article 10.11646/phytotaxa.252.3.2 1179-3163 13676171 Caulerpa serrulata (Forsskål) J. Agardh 1837:174 ( Figure 7 A,B ) Type Locality: −Mokha, Yemen . Description: −Erect to prostate thallus. Compressed assimilators, with white spoted in the field, twisted in random directions, with marginal serrations, (1.2–) 2.2–2.6 (–4.5) cm high, (1.7–) 2.7–3.1 (–4.9) mm wide. Dichotomous branching. Stolons creeping, (0.5–) 0.7–0.8 (–1.1) mm diameter. Habitat: −Rocky and dead coral, between 5–15 m deep. Distribution in the ETP: − Costa Rica : Isla del Coco, Panama : Golfo de Chiriquí . Appear to have restricted distribution to these localities. References: − Wysor 2004 , Fernández 2008, Fernández & Alvarado 2008 , Fernández-García et al. 2011 , Littler & Littler 2010.