Hermit crabs (Decapoda: Crustacea) from deep Mauritanian waters (NW Africa) with the description of a new species Author De Matos-Pita, Susana S. Author Ramil, Fran text Zootaxa 2015 3926 2 151 190 journal article 10.11646/zootaxa.3926.2.1 e32273db-c0e0-4966-b872-dc27ea093c4a 1175-5326 242192 F0CAD726-4F6A-4802-BF57-38FEF89C572F Pagurus prideaux Leach, 1815 ( Fig. 17 ) Pagurus Prideaux Leach, 1815 : text to and pl. 26 figs. 5, 6. Pagurus prideauxi . — Forest, 1966 : 158 . Pagurus prideaux . — Ingle, 1993 : 148 , figs. 121–124 (lit.). Material examined . MU86, 91– 103 m , (1); MU88, 94– 120 m , (1); MU201, 87 m, (2); MU205, 89– 93 m , (2). Males: 6.17–6.86 mm , ovigerous females: 5.87–7.86 mm Habitat . Bottoms of Zostera marina Linnaeus, 1753 , maerl and littoral detritic bottoms to bathyal muds ( d’Udekem d’Acoz 1999 ). Also reported in Posidonia oceanica meadows ( Pipitone & Arculeo 2003 ; Ates et al . 2004 ) and rocky bottoms ( Pipitone & Arculeo 2003 ; Pipitone & Vaccaro 2011 ). Pagurus prideaux was mainly found inhabiting shells of Fusinus rostratus (Olivi, 1792) , Naticarius hebraeus (Martyn, 1786) and Naticarius stercusmuscarum (Gmelin, 1791) but was also found in Buccinum humphreysianum Bennett, 1824 and Galeodea echinophora (Linnaeus, 1758) in the Mediterranean Sea ( Caruso et al . 2004 ). The symbionts on shells were summarized by Williams & McDermott (2004) . We found our specimens on sandy bottoms, inhabiting shells of the gastropod species Calliostoma granulatum (Born, 1778) , Natica canariensis Odhner, 1932 and an unidentified species of the genus Natica , associated with hydrozoan species Clytia paulensis (Vanhöffen, 1910) and Hydractinia multitentaculata (Millard, 1975) , as well as with the cirriped Amphibalanus amphitrite (Darwin, 1854) . All specimens were in symbiosis with the actinian Adamsia palliata (O. F. Müller, 1776) . FIGURE 17. Pagurus prideaux Leach, 1815 . Adult male, sl: 6.17 mm (MU205; UVIGOBA3 03228): A, shield and cephalic appendages. B, chelipeds: left, ventrolateral view, right lateral view. Scale: A, 1 mm; B, 5 mm. Distribution . Widely distributed in the eastern Atlantic from the southwestern Norwegian coast to Guinea , including Madeira, the Canary and Cape Verde Islands and the Mediterranean Sea ( Caruso et al . 2004 ). The record from the Red Sea was considered dubious by d’Udekem d’Acoz (1999) . Bathymetric distribution from the intertidal zone ( d’Udekem d’Acoz 1999 ) down to 678 m depth ( Caruso et al . 2004 ). Other records of this species ( Ates et al . 2004 ; Ungaro et al . 2005 ; Ates et al . 2006 ; Serrano et al . 2006 ; Fanelli et al . 2007 ; Cartes et al . 2007 ; García-Muñoz et al . 2008 ; Sánchez et al . 2008 ; Koçak et al . 2010 ; Serrano et al . 2011 ; Pipitone & Vaccaro 2011 ; El Lakhrach et al . 2010; Ellis et al . 2013 ) fit well with the above-mentioned distribution. Remarks . Our specimens coincide with those described and figured by Ingle (1993) .