Friday, March 27, 2026

[Crustacea • 2026] Alpheopsis gorei • A mesophotic alpheid Shrimp (Decapoda: Caridea: Alpheidae) from the western Atlantic


Alpheopsis gorei  Anker, 2026

Papéis Avulsos De Zoologia. 66;  
 Photograph by Sarah Tweedt. 

Abstract
A new mesophotic alpheid shrimp, Alpheopsis gorei sp. nov., is described from several offshore localities in the northern and north-eastern Gulf of Mexico off Texas, Louisiana and western Florida. However, the distribution range of the new species extends to the Atlantic coast of Florida, with a previous record from deep-water reefs off Key Largo, under A. trispinosa Stimpson, 1860. The presently known bathymetric range of A. gorei sp. nov. is 42.1-126.2 m and the species appears to be free-living, mainly among coralline nodules and in crevices of deep coral rubble. The new species is morphologically closest to the eastern Altantic A. africana Holthuis, 1952 and A. azorica Anker, Poddoubtchenko & d’Udekem d’Acoz, 2005, the eastern Pacific A. equidactylus Lockington, 1877, and the Indo-West Pacific A. trispinosa, A. garricki Yaldwyn, 1971 and A. keijii Anker, 2007, differing from each of them by at least two morphological characters.

Keywords: Atlantic Ocean, USA, Gulf of Mexico, Florida, Crustacean, Deep-water shrimp, Alpheidae, ROV, ARMS

Alpheopsis gorei sp. nov., paratype, ov. female, cl 3.5 mm, off Louisiana, USA (USNM 1745065), shrimp alive, dorsal. Photograph by Sarah Tweedt.  

Alpheopsis gorei sp. nov.

Etymology: The new species is named after the decapod taxonomist, marine ecologist and biogeographer, Dr. Richard H. Gore, who first reported it from Florida (Gore, 1981, as A. trispinosus). 


Arthur Anker. 2026. Description of Alpheopsis gorei sp. nov., A mesophotic alpheid Shrimp from the western Atlantic (Decapoda: Caridea). Papéis Avulsos De Zoologia. 66; e202666006. DOI: 10.11606/1807-0205/2026.66.006 [2026-03-03]