The shallow-water echinoids (Echinodermata: Echinoidea) of Cuba ruber rodri ’guez-barreras Department of Biology, University of Puerto Rico, Rı ´o Piedras, PO Box 23360, San Juan, PR, 00931-3360 This paper provides the most up to date list of the Cuban echinoid fauna. Habitat, depth range, distribution and localities in Cuba are presented for this group. I present here the most recent list of shallow-water sea urchins for the Cuban Archipelago. This catalogue increases the number of shallow-water sea urchins for Cuba to 23 species (subspecies included) distributed in seven orders and 19 genera. I have added the occurrence of the sea urchin Schizaster floridiensis for Cuban shallow waters, and expand the known regional distribution range for this species. Furthermore, I report here two new depth ranges for Schizaster floridiensis and Astropyga magnifica that now begin at ten and two metres depth respectively. Keywords: Echinodermata, Echinoidea, new record, Schizaster floridiensis, Astropyga magnifica, Cuba Submitted 11 April 2014; accepted 27 July 2014 INTRODUCTION Echinoderms are exclusively marine invertebrates with more than 7,000 extant species and more than 13,000 extinct species distributed in five classes (Durham et al., 1966; Hendler et al., 1995). Members of this phylum inhabit in different biotopes from the intertidal zone to the abyssal regions in all latitudes, and their presence is relevant in coral reef and other shallow waters ecosystems (Pawson, 1982; Miller & Pawson, 1989). The first studies in Cuba began with expeditions conducted by the US vessels ‘Blake’, ‘Fish Hawk’ and ‘Albatross’, during the second half of the 19th Century and the first quarter of the 20th Century (Del Valle et al., 2005). Inconsistent fieldworks before the 1960s decreased the number of new reports and/or new species. The class Echinoidea is represented in Cuba by 63 species distributed in 13 orders, 23 families and 35 genera (Del Valle-Garcı ´a et al., 2013); and where 21 species of them inhabit in shallow-waters (Del Valle et al., 2005). Hence, a new record of the genus Schizaster (former Paraster) was added in the last decade (Rodrı ´guez-Barreras et al., 2007). This small sea urchin remains burrowed in sandy substrates (Hendler et al., 1995), and they are usually found because of the presence of the remains (tests) on the surface sediments (Chesher, 1966; Rodrı ´guez-Barreras et al., 2013). The genus Schizaster has been reported at several localities in the Caribbean and the Gulf of Mexico (Chesher, 1966; Kier, 1975; Hendler et al., 1995; Alvarado et al., 2008; Solı ´s-Marı ´n et al., 2013), but not yet for the Cuba Archipelago. Recently a new catalogue of the Cuban crinoids was published by Rodrı ´guez-Barreras & Messing (2013). Now, the present paper represents a second effort to provide the most updated list of the Cuban shallow-water sea urchins, and include a new record for Cuba. Furthermore, I provide valuable information about habitat, depth range, general distribution, and localities in Cuba where the species have been previously reported. MATERIALS AND METHODS This new list is based on information from marine collections in Cuba at the National Aquarium of Cuba, and the ‘Felipe Poey’ Museum at the University of Havana (Del Valle et al., 2005). The taxonomic classification was updated following Solı ´s-Marı ´n et al.,(2013) and the World Register of Marine Species (WoRMS, www.marinespecies.org). The criterion for shallow-water was set at 60 m depth (Rodrı ´guez-Barreras et al., 2013). Two tests under the name of Paraster doederleini Chesher 1972, and deposited in the collection of the National Aquarium of Cuba were reanalysed in detail. RESULTS The present study presents a list of 23 echinoids (subspecies included), distributed in 7 orders and 19 genera. In addition, I add a new record (Schizaster floridiensis) for Cuban shallow waters. Phylum ECHINODERMATA Klein, 1754 Class ECHINOIDEA Leske, 1778 Order CIDAROIDEA Claus, 1880 Family CIDARIDAE Gray, 1825 Genus Eucidaris Pomel, 1883 Eucidaris tribuloides tribuloides (Lamarck, 1816) HABITAT In small holes and crevices of rocky bottoms, seagrass beds, sandy bottoms and rubble (Hendler et al., 1995; Solı ´s-Marı ´n et al., 2013). Corresponding author: R. Rodrı ´guez-Barreras Email: ruber.rodriguez@outlook.com 1 Marine Biodiversity Records, page 1 of 8. # Marine Biological Association of the United Kingdom, 2014 doi:10.1017/S175526721400092X; Vol. 7; e86; 2014 Published online