Abstract
The northern coast of the Mexican state of Yucatan has only been cursorily sampled in the past, with most of this effort concentrated on the largest coral reef in the Gulf of Mexico, Arrecife Alacranes. The present study reports on recent collections (June 2008 - September 2013) of caridean shrimp in Yucatan, including Arrecife Alacranes and other reefs, as well as coastal lagoons and beaches. Additionally, a number of species are reported based on older, unidentified museum material. Six species represent new records for the Gulf of Mexico [Janicea antiguensis (Chace, 1972), Gnathophyllum modestum Hay, 1917, Lysmata jundalini Rhyne, Calado and dos Santos, 2012, Periclimenes sandyi De Grave, 2009, Rapipontonia platalea (Holthuis, 1951a), Typton tortugae, McClendon, 1911], and 11 species are confirmed new records for Mexico [Lysmata ankeri Rhyne and Lin, 2006, L. pederseni Rhyne and Lin, 2006, L. rafa Rhyne and Anker, 2007, Ascidonia miserabilis (Holthuis, 1951b), A. quasipusilla (Chace, 1972), Neopontonides chacei Heard, 1986, Periclimenaeus maxillulidens (Schmitt, 1936), P. pearsei (Schmitt, 1932), P. schmitti Holthuis, 1951b, Typton prionurus Holthuis, 1951b, Processa manningi De Grave and Felder, 2012], adding up to a total of 17 newly reported species for the East coast of Mexico. Further, the colour pattern of several species is documented for the first time.
Highlights
The known fauna of caridean shrimps from the Gulf of México currently comprises 252 species belonging to 73 genera and 22 families (Anker, 2010, 2012; Anker and De Grave, 2010; Felder et al, 2009)
In order to contribute to the knowledge of carideans along the Mexican coastline of the Gulf of México, a number of sampling campaigns have been carried out since 2008 along the Yucatán peninsula by the BioDiversidad Marina de Yucatán team (BDMY) at Unidad Multidisciplinaria de Docencia e Investigación de Sisal (UMDI-Sisal), concentrating on the largest offshore reef system of the Gulf of Mexico (Arrecife Alacranes) and two of the Sisal banks reef system (Zarco-Perelló et al, 2013) (Serpientes and Madagascar reefs), northeast off the Yucatán peninsula, but supplemented by fieldwork in the marshes, estuaries, and coastal wetlands of north-western Yucatán peninsula, from Celestún to Ría Lagartos (Fig. 1)
As an estimated 35-40 caridean species in the Gulf of México are exclusively known from continental slopes and deeper, it appears that the known shallow water Mexican fauna approximates only half the total caridean biodiversity in the Gulf
Summary
The known fauna of caridean shrimps from the Gulf of México currently comprises 252 species belonging to 73 genera and 22 families (Anker, 2010, 2012; Anker and De Grave, 2010; Felder et al, 2009). The knowledge of caridean species in the Mexican part of the Gulf of México is quite considerable, it does not appear exhaustive compared to the effort in the United States region of the Gulf, as the included additional records demonstrate. In order to contribute to the knowledge of carideans along the Mexican coastline of the Gulf of México, a number of sampling campaigns have been carried out since 2008 along the Yucatán peninsula by the BioDiversidad Marina de Yucatán team (BDMY) at Unidad Multidisciplinaria de Docencia e Investigación de Sisal (UMDI-Sisal), concentrating on the largest offshore reef system of the Gulf of Mexico (Arrecife Alacranes) and two of the Sisal banks reef system (Zarco-Perelló et al, 2013) (Serpientes and Madagascar reefs), northeast off the Yucatán peninsula, but supplemented by fieldwork in the marshes, estuaries, and coastal wetlands of north-western Yucatán peninsula, from Celestún to Ría Lagartos (Fig. 1). Some points along the Caribbean coast of México were sampled (Fig.1)
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