Fenneralpheus chacei Felder & Manning, 1986

Caripe, Jonathan Vera, Pereda, Luisana & Anker, Arthur, 2021, A new species and two new records of symbiotic infaunal alpheid shrimps from the genera Leptalpheus Williams, 1965 and Fenneralpheus Felder & Manning 1986 (Decapoda: Caridea) from Venezuela, Zootaxa 5061 (1), pp. 177-184 : 183

Fenneralpheus chacei Felder & Manning, 1986

Fenneralpheus chacei Felder & Manning 1986: 498 , figs. 1–3; Anker 2011: 28 , figs. 20–22.

Material examined. 2males (cl 10.9, 11.1mm),MBUCV-5559, Venezuela, Sucre, Santa Fe Beach , 10°16’56.4541”N – W64°25’31.6628”, shallow subtidal seagrass flat, depth 1.0 m, in burrow, suction pump, leg. L. Pereda, 10 July 2008 .

Distribution. Western Atlantic: USA (Indian River lagoon and Florida Keys in Florida), Panama (Bocas del Toro), Venezuela (Sucre) ( Felder & Manning 1986; Anker 2011; present study).

Ecology. The Venezuelan specimens were extracted from burrows of unknown hosts on a shallow seagrass flat, at a depth of 1 m.

Remarks. The Venezuelan specimen of F. chacei closely resembles the holotype from Florida, as described by Felder & Manning (1986), and the specimen from Panama illustrated by Anker (2011). The burrowing hosts of both species of Fenneralpheus remain unknown, although judging from the total body size of specimens of F. chacei and F. orabovis Anker, 2011 reported by Anker (2011) and De Grave & Anker (2017), some of them approaching 35 mm, the hosts must be large-sized species of callianassids (e.g., Glypturus , Neocallichirus ) and/or stomatopods (e.g., Lysiosquillina ), constructing large, spacious burrows.