Alpheus agilis Anker, Hurt & Knowlton 2009

• Main Authors: Anker, Arthur, Tavares, Marcos, Mendonça, Joel B.
• Format: Text
• Language: unknown
• Published: Zenodo 2016
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Malacostraca; Decapoda; Alpheidae; Alpheus; Alpheus agilis; Bouvier; Marcos; Rocas; Seta; South Atlantic Ocean
• Online Access: https://dx.doi.org/10.5281/zenodo.3512735; https://zenodo.org/record/3512735

Alpheus agilis Anker, Hurt & Knowlton, 2009 Alpheus agilis Anker et al. 2009: 12, figs. 4, 5F; Soledade & Almeida 2013: 94. Material examined . Brazil: 1 male, 2 ovig. females, MZUSP 33315, Trindade Island, Praia do Andrada, 20 ° 30 ’ 34.5 ”S – 29 ° 20 ’ 29.5 ”W, rocky intertidal, under rocks, coll. J.B. Mendonça, 11.xi. 2014. Size of male: cl 5.2 mm; larger female: cl 7.0 mm. Description . See Anker et al. (2009) for description and illustrations, including colour photographs. Distribution . Amphi-Atlantic: Cape Verde Archipelago; São Tomé & Príncipe; Brazil: Atol das Rocas and Trindade Island (Anker et al. 2009; present study). Ecology . Rocky shores; in tide pools and under rocks; possibly confined to intertidal. Remarks . Alpheus agilis was previously known from Brazil based on a single record from Atol das Rocas (Anker et al. 2009; Soledade & Almeida 2013) and is here recorded for the first time from Trindade Island. This species is closely related to A. bouvieri A. Milne-Edwards, 1878, an amphi-Atlantic snapping shrimp fairly common on the continental coast of Brazil (Soledade & Almeida 2013) and in Ascension Island (Manning & Chace 1990; De Grave et al. 2014), but curiously not (yet?) found in the Trindade and Martin Vaz Archipelago. Alpheus agilis can be separated by A. bouvieri most easily by the presence of a stout spiniform seta on the ischium of the third and fourth pereiopods, which is absent in A. bouvieri . : Published as part of Anker, Arthur, Tavares, Marcos & Mendonça, Joel B., 2016, Alpheid shrimps (Decapoda: Caridea) of the Trindade & Martin Vaz Archipelago, off Brazil, with new records, description of a new species of Synalpheus and remarks on zoogeographical patterns in the oceanic islands of the tropical southern Atlantic, pp. 1-58 in Zootaxa 4138 (1) on pages 13-14, DOI: 10.11646/zootaxa.4138.1.1, http://zenodo.org/record/271958 : {"references": ["Anker, A., Hurt, C. & Knowlton, N. (2009) Description of cryptic taxa within the Alpheus bouvieri A. Milne-Edwards, 1878 and A. hebes Kim and Abele, 1988 species complexes (Crustacea: Decapoda: Alpheidae). Zootaxa, 2153, 1 - 23.", "Milne-Edwards, A. (1878) Description de quelques especes nouvelles de crustaces provenant du voyage aux iles du Cap Vert de MM. Bouvier et Cessac. Bulletin de la Societe Philomatique de Paris, Serie 7, 2, 225 - 232.", "Manning, R. B. & Chace, F. A. Jr. (1990) Decapod and stomatopod Crustacea from Ascension Island, South Atlantic Ocean. Smithsonian Contributions to Zoology, 503, i - v, 1 - 91. http: // dx. doi. org / 10.5479 / si. 00810282.503", "De Grave, S., Anker, A., Dworschak, P. C., Clark, P. F. & Wirtz, P. (2014) An updated checklist of the marine Decapoda of Ascension Island, central Atlantic Ocean. Journal of the Marine Biological Association of the United Kingdom, CJO 2014, 1 - 12. http: // dx. doi. org / 10.1017 / S 0025315414001295"]}