Alpheus edamensis De Man, 1888

Dehghani, Amir, Sari, Alireza & Naderloo, Reza, 2019, Annotated checklist of the snapping shrimps of the genus Alpheus Fabricius, 1798 (Crustacea: Decapoda: Alpheidae) from the Persian Gulf and Gulf of Oman, Iran, Zootaxa 4544 (4), pp. 479-504 : 484

Alpheus edamensis De Man, 1888

( Fig. 2 E–F)

Alpheus hippothoë var. edamensis De Man, 1888a: 518 .

Alpheus acanthomerus Ortmann, 1890: 474 .

Alpheus edamensis — De Man, 1911: 437; Banner & Banner, 1966a: 157; Johnson, 1979: 37; Banner & Banner, 1978: 222; Banner & Banner, 1982: 188; Banner & Banner, 1985: 1985:15; Chace, 1988: 24; Anker & De Grave, 2016: 351.

Material examined. PG: 2 males, 3 females ( ZUTC 6714 ), Bandar-Dayyer , sandy/boulder shores, Coll. R. Naderloo, 14 Oct. 2013 ; 1 male, 1 female ( ZUTC 6716 ), Hormuz I., in crevices of dead coral, Coll. A. Dehghani, 14 May 2016 ; 1 male, 3 females ( ZUTC 6771 ), Bandar-Genaveh , under rocks and from burrows, Coll. A. Sari and H. Salehi, 28 Nov. 2012 ; 1 male, 1 female ( SMF 51378), Hormuz I., in crevices of dead coral, Coll. A. Dehghani, 14 May 2016 .

GO: 2 males, 1 female ( ZUTC 6715 ), Chabahar Bay , Tis, under large rocks and coral rubble, Coll. A. Dehghani and H. Ashrafi, 2 Oct. 2016 ; 1 male, 2 ovig. females ( ZUTC 6772 ), Abd Village , rocky/cobble, Coll. A. Dehghani & H. Ashrafi, 2 May 2016 ; 1 male, 1 female ( ZUTC 6773 ), Djod Village , rocky/cobble, Coll. A. Dehghani and H. Ashrafi, 25 May 2017 .

Distribution. Indo-West Pacific: Madagascar, Mauritius, Réunion, Seychelles, Red Sea, Persian Gulf, Gulf of Oman, Malaysia, Thailand, Indonesia, Philippines, and Australia.

Regional records. PG: Iran ( Naderloo & Türkay 2012; present study); GO: Iran (present study).

Habitat. Sandy with rubble and rocky-sand flats, under rocks and large pieces of coral rubble; intertidal to 5 m deep.

Remarks. This species is one of largest Alpheus in PG and GO (TL: 10 cm). Small-sized specimens were free-living ( Fig. 2F ), but larger specimens ( Fig. 2E ) were found associated with the ophiuroid Macrophiothrix elongata Clark, 1938 . Furthermore, PG specimens differ from Singaporean specimens in color pattern (see Anker & De Grave, 2016). To clarify the species identity, a molecular analysis and thorough comparison of morphology and color patterns were applied on the present study material. Accordingly, these specimens were precisely categorized into “symbiont ” and “ non-symbiont ” A. edamensis (unpublished molecular data by authors based on COI sequencing).

Figures

FIGURE 2. Alpheus deuteropus Hilgendorf, 1879, A. Male (CL. 8.6 mm); B. Female (CL. 8.3 mm), Abu-Musa Island. Alpheus djeddensis Coutière, 1897, C. Male (CL. 10 mm); D. Male pale morph (CL. 9.8 mm), Tis, Chabahar Bay. Alpheus edamensis De Man, 1888, E. Large male (CL. 20 mm); F. Medium male (CL. 8.9 mm), Tis, Chabahar Bay, Gulf of Oman.