Anker A., Pachelle P.P.G. 2015. Two new snapping shrimps (Decapoda: Caridea: Alpheidae: Alpheus) from the tropical eastern Pacific // Arthropoda Selecta. Vol.24. No.3: 247–258 [in English].

Museu de Zoologia, Universidade de Sгo Paulo, Av. Nazaré, 481 – Ipiranga, São Paulo – SP, 04263-000 Brazil. E-mail:

KEY WORDS: Decapoda, Caridea, Alpheidae, snapping shrimp, mudflat, East Pacific, new species.

ABSTRACT. Two snapping shrimps from the Alpheus edwardsii (Audouin, 1826) species group are described based on material collected on estuarine mudflats of the Pacific coast of Panama. Alpheus burukovskyi sp.n., from Coiba Island and Azuero Peninsula, is morphologically closest to the eastern Pacific A. villus Kim, Abele, 1988, but can be separated from it by at least three morphological characters. In addition, A. burukovskyi sp.n. may be separated from most if not all other American members of the A. edwardsii group by a diagnostic, uniform red colouration. Alpheus zarenkovi sp.n., presently known only from Coiba Island, shares most morphological characters with the western Atlantic A. heterochaelis Say, 1818 and A. petronioi Almeida, Terossi, Mantelatto, 2014, and the eastern Pacific A. villus, but can be distinguished from each of them by at least two morphological characters.

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