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Latin american journal of aquatic research

On-line version ISSN 0718-560X


CAMPOS, Ernesto. Taxonomy of Pinnotheres bipunctatus Nicolet, 1849 with a distributional checklist of the Pinnotheridae of Chile and Peru, and a list of the Crustacea described by Hercule Nicolet in the Atlas of the Physical and Political History of Chile. Lat. Am. J. Aquat. Res. [online]. 2017, vol.45, n.2, pp.379-390. ISSN 0718-560X.

Because the male holotype of Pinnotheres bipunctatus possesses a carpus of the third maxilliped larger than the propodus, the dactylus disto-medially inserted on the ventral margin of this latter article extending far beyond its tip, and a laterally expanded telson, wider than the sixth abdominal somite, it is excluded from Pinnotheres and assigned to Pinnaxodes (type species P. chilensis). Although males of these species can morphologically be separated, the holotype of P. bipunctatus resembles a juvenile, consequently, a categorical taxonomic distinction between this species and P. chilensis will require a comparative morphological study of the preadult stages of the latter species. A distributional checklist and host of the Pinnotheridae recorded for the Peru-Chile region is included, along with a list and the taxonomic status of the five genera and 53 species of Crustacea described by Hercule Nicolet in the "Physical and Political History of Chile".

Keywords : Pinnotheridae; Pinnaxodes; Echinodermata; Claudio Gay; Chile.

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