Morphometric observations on Orchestia selkirki Stebbing, 1888 (Peracarida, Amphipoda) in the Juan Fernández islands

Abstract

The aim of the present study now is to make a morphometric description of a population of Orchestia selkirki Stebbing, 1888, found in a so-called "Claro Verde", that is a zone with Myrceugenia fernandeziana (Hook. & Arn.) Johow forest with small streams, and with many access difficulties due to a long mountain path and in addition access problems with respect to entry from the continent. This valley is located on Robinsoe Crusoe Island, one of the islands of the Juan Fernández archipelago (Pérez-González et al., 2014).