Check List 17(3): 759-763, doi: 10.15560/17.3.759
First record of Macrobrachium grandimanus (Randall, 1840) (Crustacea, Decapoda, Palaemonidae) from Guam, Micronesia
expand article infoYusuke Fuke‡, Makoto Sasazuka§
‡ Laboratory of Animal Ecology, Graduate School of Science, Kyoto University, Kyoto, Japan§ One's habitat, Tokyo, Japan

Corresponding author: Yusuke Fuke ( yfa73986@gmail.com )

Academic editor: Nasreen Peer
© Yusuke Fuke, Makoto Sasazuka.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation: Fuke Y, Sasazuka M (2021) First record of Macrobrachium grandimanus (Randall, 1840) (Crustacea, Decapoda, Palaemonidae) from Guam, Micronesia. Check List 17(3): 759-763. https://doi.org/10.15560/17.3.759
Open Access
Abstract

The Hawaiian river shrimp Macrobrachium grandimanus (Randall, 1840) is an amphidromous brackish water prawn that inhabits the Hawaiian Islands (type locality), Ryukyu Islands, Melanesia (Fiji, New Caledonia), and Polynesia (Tonga). Here, we report a new record of this species from Guam, Micronesia. Two genetically and morphologically differentiated lineages of this species are known: the Hawaiian and the Ryukyu lineages. Morphological and mitochondrial DNA analyses revealed that the Guam population is closely related to the Ryukyu lineage.

Keywords
Amphidromous, Decapoda, DNA barcoding, haplotype network, mitochondrial DNA, Ryukyu Archipelago