Decapoda - Caridea - Alpheidae - Alpheus

Alpheus polystictus Knowlton & Keller, 1985

World Distribution
Knowlton et al. (Internet) - Tropical Western Atlantic [WA]: Caribbean from Haiti and Cuba to Panama, Venezuela and Lesser Antilles (e.g., Guadeloupe); more recently also found in S Florida (A. Rhyne and A. Anker, pers. obs.)

Environnement : Marine - Substrat/Association : Associated with anemones

Vertical range : Shallow-waters (0-100 m) - Min-Max observed: 0-10 m

Lesser Antilles data
Distribution: Lesser Antilles, ICA (Guadeloupe, Martinique), IOV (Los Roques). 0-10 m. WA.
Alpheus polystictus - Rodríguez, 1986: tab. 2, Los Roques. - Anker, 2001: 223, Guadeloupe.
Alpheus polystictus - Guadeloupe, Karubenthos 2012, det. A. Anker MNHN 2014, MNHN-IU-2013-12073, st. GB19, 11 m, JL987. - Martinique - Photo in situ Y. Buske, 2014, det. J. Poupin [based on presence of white spots on chelipeds].
Comment : this a species of the Alpheus armatus species complex, with five species; characters useful for separation are in Almeida & Anker (2011). Obligate associate of sea anemone (e.g. Bartholomea annulata).

Comment(s) on data
Alpheus armatus is a species complex including: A. armatus, A. immaculatus Knowlton & Keller, 1983, A. polystictus Knowlton & Keller, 1985, A. roquensis Knowlton & Keller, 1985 and Alpheus rudolphi Almeida & Anker, 2011
Alpheus polysticutus - Knowlton et al. (Internet), Guadeloupe (probably from Anker observation) at

References : PDF list, 214 pp (1.4 Mo)

This species in Worms Database