Abstract
This study reports the occurrence of the pea-crab Calyptraeotheres garthi (Fenucci, 1975) for the State of Ceará, Northeastern Brazil. The crab was found associated to the calyptraeid limpet Crepidula plana (Say, 1822) in a Voluta ebraea (Linnaeus, 1758) shell occupied by the hermit crab Petrochirus diogenes (Linnaeus, 1758). This record represents the northernmost occurrence for the species in the Atlantic Ocean and the second for Brazilian waters. This new record increases the distribution area of C. garthi in about 3520 km. Taxonomic and biogeographic remarks, ecological notes and an updated distribution map are provided for this species.
Highlights
This study reports the occurrence of the pea-crab Calyptraeotheres garthi (Fenucci, 1975) for the State of Ceará, Northeastern Brazil
The pea-crabs belongs to the family Pinnotheridae De Haan, 1833 and are well known as commensals or parasites of marine invertebrates as bivalves, gastropods, equinoderms, polychaetes, equiurid worms, ascidians or other crustaceans (Schmitt et al, 1973; Baeza, 2015)
Calyptraeotheres garthi (Fenucci, 1975) is distributed in Brazil and Argentina and can be found in the mantle of calyptraeid gastropods of the genera Crepidula Lamarck, 1799, Bostrycapulus Olsson and Harbison, 1953, and Trochita Schumacher, 1817, usually associated to shells used by the hermit crab genera Petrochirus Stimpson, 1858, and Dardanus Paulson, 1875 (Hernández-Ávila & Campos, 2006; Ayón-Parente & Hendrickx, 2016; Boschi, 2016)
Summary
This study reports the occurrence of the pea-crab Calyptraeotheres garthi (Fenucci, 1975) for the State of Ceará, Northeastern Brazil. RECORD OF THE PEA-CRAB Calyptraeotheres garthi (FENUCCI, 1975) (BRACHYURA, PINNOTHERIDAE) IN TROPICAL ATLANTIC OCEAN
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