First record of the box crab Cryptosoma balguerii (Desbonne in Desbonne and Schramm, 1867) (Brachyura: Calappidae) from São Paulo, Brazil revealed by DNA markers

Abstract

The present study provided information extending the known geographical distribution of the calappid crab Cryptosoma balguerii (Desbonne in Desbonne and Schramm, 1867). We provide new data that extends the range of this species in the western Atlantic farther to the south in the Brazilian region, State of São Paulo and check its identification by molecular tools within Cryptosoma and other calappid crabs. New records of marine species provide a baseline for a better understanding of the biodiversity of ecological provinces. This work is an example of the importance of an exhaustive and continuous investigation on the biodiversity of subtidal rocky bottoms.

Confirmed by integrative taxonomy first and unusual occurrence of the exotic shrimp Neocaridina davidi (Caridea: Atyidae) in Brazil

“…Because it is a globally invasive species, special attention to protecting the native biodiversity of Brazil should be made. The fact that only one specimen was sampled does not make the finding any less worrying, as similar results have already been reported, mainly in relation to invasive decapod species, when the first records in Brazilian waters occurred with few individuals (Mantelatto and Dias, 1999;Almeida et al, 2012;Tamburus et al, 2019). Furthermore, based on our past experience in the field and using previous literature on the survey of the region's decapod fauna, we are convinced of this record, mainly due to the use of the precise analyses that were carried out.…”