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Two new species of Urothoe (Crustacea, Amphipoda, Gammaridea) From The East Johor Islands Archipelago, Malaysia

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Author(s): Azman Abdul Rahim | C Melvin

Journal: ZooKeys
ISSN 1313-2989

Volume: 87;
Start page: 43;
Date: 2011;
Original page

Keywords: Crustacea | Amphipoda | Urothoidae | Urothoe tinggiensis | Urothoe sibuensis | East Johor Islands Archipelago

ABSTRACT
Two new species of urothoid amphipods from Pulau Sibu and Pulau Tinggi, Johor are described and illustrated. The specimens of Urothoe sibuensis new species were collected by vertical haul plankton net and is distinctively different from other existing Urothoe species by these combination of special characters; similar gnathopods 1–2 with short and stout propodus expanded into poorly defined palms; large eyes and epimeron 3 smooth. Urothoe tinggiensis new species as collected using an airlift suction sampler at seagrass area is characterized by its different gnathopodal configuration with setose dactylus of 5th pereopod; eyes minute; carpus is wider than merus in the 5th pereopod; subquadrate coxa 4; merus and carpus of pereopods 6–7 are linear.
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