Kemponia ensifrons (Dana, 1852) comb. nov.

Anchistia ensifrons Dana, 1852: 25 .

Periclimenes (Falciger) ensifrons — Borradaile, 1917, 367, 370.

Periclimenes ensifrons — Borradaile, 1898: 382. — Nobili, 1899: 234: 1907: 359. — Kemp, 1915: 282; 1922: 209–210. — Bruce, 1971: 5; 1984: 145. — Devaney and Bruce, 1987: 230. — Chace and Bruce, 1993: 111. — Li, 1997: 238 –239; 2000: 180; 2001: 82.

Periclimenes (Harpilius) ensifrons — Holthuis, 1952: 11.

Type material. No longer extant.

Type locality. Balabac Strait, North Borneo.

Habitat. Coral reefs.

Bathymetric range. Intertidal to 35 m (De Grave, 2000).

Distribution. Egyptian Red Sea, Zanzibar, Comoro Islands, Seychelle Islands, Burma, China, Papua New Guinea, Marshall Islands, Tuamotu Islands.

Remarks. This species is very closely related and possibly synonymous with K. grandis (Stimpson) . Most reports have been based on isolated specimens. A pair of recently studied specimens of K. grandis (from Sweers Island, South Wellesley Islands, Queensland, QM W 27141) showed the male, with a CL of 2.0 mm and R. 1+7/3, with typical second pereiopod chelae, as figured in Kemp (1922), and an associated ovigerous female, CL 2.4 mm, R. 1+ 6/4, with the second pereiopod carpus completely devoid of any acute tooth as described for K. ensifrons .