Ancylomenes pedersoni ( Chace, 1958 ) Okuno & Bruce, 2010

Okuno, J. & Bruce, A. J., 2010, Designation of Ancylomenes gen. nov., for the ‘ Periclimenes aesopius species group’ (Crustacea: Decapoda: Palaemonidae), with the description of a new species and a checklist of congeneric species *, Zootaxa 2372 (1), pp. 85-105 : 99-100

Ancylomenes pedersoni ( Chace, 1958) comb. nov.

Restricted synonymy:

Periclimenes (Periclimenes) pedersoni Chace, 1958: 125–130 , figs. 1–17. — Limbaugh et al. 1961: 242–247, figs. 3–4. Periclimenes pedersoni . — Williams 1984: 87–88, fig. 59.

Material examined. QM W 28903, 1 ovig. female, CL 5.3 mm, 6 more specimens, off Dangriga , Pelican Cays, Belize, north-western Caribbean Sea, 1 m, associated with Bartholomea annulata , 25 April 2004, leg. W. Sterrer.

Type data. Male holotype, USNM 101894 ; paratypes, USNM 101895-101897 .

Distribution. Type locality: Lyford Cay, New Providence Island, Bahamas. Known from the West Indies and Caribbean Sea ( Williams 1984; Spotte et al. 1991).

Bathymetric range. Sublittoral zone, to 40 m.

Host. In association with actiniarians, Aiptasia pallida Duchassaing de Fombressin & Michelotti, 1860 , Bartholomea annulata ( Le Sueur, 1817) , Bunodosoma granulifera ( Le Sueur, 1817) , Condylactis gigantea , Heteractis lucida Duchassaing de Fombressin & Michelotti, 1860 , and Lebrunia danae ( Duchassaing de Fombressin & Michelotti, 1860) , ceriantharian, Cerianthus sp. , and benthic medusa Cassiopea xamachana Bigelow, 1892 ( Spotte et al. 1991). Also known as a fish cleaner.

Remarks. Wicksten (1995) and Spotte (1999) suggested that P. anthophilus should be regarded as a junior synonym of P. pedersoni . As pointed out by Holthuis & Eibl-Eibesfeldt (1964), we considered that these two species may be separated by the form of the second pereiopod. In A. pedersoni comb. nov., the fingers are slender and gradually tapered distally, while the dactylus of major second pereiopod in A. anthophilus comb. nov. is compressed, and its dorsal surface is flattened.