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Magnolia Press, Zootaxa, 3(4868), p. 301-330, 2020

DOI: 10.11646/zootaxa.4868.3.1

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On a collection of freshwater and estuarine crabs (Crustacea: Brachyura) from Mindanao Island, the Philippines

Distributing this paper is prohibited by the publisher
Distributing this paper is prohibited by the publisher

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Abstract

The brachyuran fauna of the large southern Philippine island of Mindanao is poorly known, with only a few freshwater and estuarine crab species described or recorded in the last 30 years. Renewed interest in crab biodiversity has led to recent, small-scale surveys (2016–2019) of freshwater and estuarine habitats in various localities in Mindanao, which have yielded a good diversity of brachyuran crabs. As a result, a total of 26 species of brachyuran crab, representing 6 families (Hymenosomatidae, Oziidae, Gecarcinidae, Sesarmidae, Varunidae, and Ocypodidae), are reported here. Of these, 15 species are new records for the main island of Mindanao, 6 of which are also new records for the Philippines. Remarks on the taxonomy, distribution, and natural history of these species are also provided.