Clibanarius longitarsus (De Haan, 1849)

(Fig. 3A)

Pagurus longitarsus De Haan, 1849: 211, Fig. 3, pl. 50 (Japan, type locality).

? Pagurus asper H. Milne Edwards, 1848: 62, 63 (Indian Ocean, type locality).

Clibanarius longitarsus – Buitendijk, 1937: 253–254; Fize & Serène, 1955: 83–90, fig, 11; Haig & Ball, 1988: 163; McLaughlin et al., 2007: 119–120, 2 unlabelled figures; Rahayu, 2003: 100–101.

Material examined. 19 females SL 4.4–7.8 mm, 17 males SL 5.2–9.5 mm, 1 indiv. in shell (ZRC), stn M9, inside lagoon near Doljo Point, Panglao I., 9°35.1′N, 123°43.6′E, 0–0.5 m, 4.vi.2004; 2 females SL 4.6–6.1 mm, 8 males SL 3.2–8.2 mm, 8 indivs. in shell (ZRC), stn M11, Sungcolan Bay, Panglao I., 9°38.3′N, 123°49.6′E, 0–3 m, 6.vi.2004; 1 female SL 6.0 mm (ZRC), stn M16, Sungcolan inlet, Panglao I., 9°38.2′N, 123°50.3′E, 0–1 m, 9.vi.2004; 1 female SL 8.2 mm (ZRC), stn M19, Pamilacan I., 9°30.0′N, 123°55.3′E, 0–2 m, 11.vi.2004; 1 ovig. female SL 5.6 mm, 2 males SL 3.4–5.1 mm (ZRC), stn M23, Bingag / Tabalong, Panglao I., 9°37.8′N, 123°48.4′E, 0–1 m, 16.vi.2004; 1 female SL 5.6 mm, 4 males SL 4.5–5.5 mm (ZRC), stn M24, Manga, Panglao I., 9°42.1′N, 123°51.3′E, 0–1 m, 17.vi.2004; 1 male SL 6.3 mm (ZRC), stn M25, Danao, Panglao I., 9°33.1′N, 123°44.6′E, 0–1 m, 17.vi.2004; 3 males SL 4.0– 6.5 mm (ZRC), stn M27, north of Abatan River, Bohol I., 9°43.6′N, 123°51.2′E, 0–1 m, 23.vi.2004 ; 1 male SL 3.7 mm (ZRC), stn M28, Abatan River, Bohol I., 9°44.5′N, 123°53.8′E, 0–1 m, 23.vi.2004 ; 3 females SL 4.0– 5.6 mm, 2 males SL 3.8–4.1 mm (ZRC), stn M30, mouth of Abatan River, Bohol I., 9°43.1′N, 123°51.5′E, 0–1 m, 24.vi.2004 ; 2 indivs. in shell, stn M41, Abatan River, Bohol I., 9°43.9′N, 123°52.3′E, 0 m, 28.vi.2004 ; 1 ovig. female SL 3.9 mm, 2 males SL 2.1–5.2 mm (ZRC), stn M42, Abatan River, Bohol I., 9°43.9′N, 123°53.4′E, 0–1 m, 28.vi.2004 ; 1 female SL 3.0 mm, 6 males SL 2.9–6.4 mm, 2 indivs. in shell (ZRC), stn M44, inner part of Danao embayment, 9°33.1′N, 123°44.9′E, 0 m, 29.vi.2004; 1 male SL 5.2 mm (ZRC), stn M46, Abatan River, Bohol I., 9°44.8′N, 123°55.5′E, 0–1 m, 29.vi.2004 ; 1 female SL 3.5 mm (ZRC), stn M50, Abatan River, Bohol I., 9°43.2′N, 123°52.3′E, 0 m, 30.vi.2004 ; 1 female SL 6.3 mm, 5 males SL 3.0–7.0 mm (ZRC), stn M51, Mayacabac, Panglao I., 9°36.8′N, 123°52.2′E, 0 m, 30.vi.2004; 2 females SL 1.1–3.8 mm, 1 male SL 7.3 mm (ZRC), stn M52, mouth of Danao embayment, Panglao I., 9°34.2′N, 123°44.9′E, 0–1m, 30.vi.2004; 1 male SL 7.8 mm (ZRC), stn M53, Mayacabac, Panglao I., 9°36.8′N, 123°52.2′E, 0 m, 2.vii.2004; 2 males SL 7.3–8.1 mm (ZRC), stn S33, Abatan River Estuary, Bohol I., 9°43.8′N, 123°52.7′E, 1–3 m, 28.vi.2004 ; 1 male SL 3.5 mm (ZRC), stn S47, Abatan River, Bohol I., 9°43.9′N, 123°52.5′E, 2–8 m, 3.vii.2004 .

Habitat. Brackish intertidal, river mouths, fringing mangroves, and nipa palms, on sandy, rocky, and sand-mud substrates.

Remarks. Rahayu (2003) noted that Cl. longitarsus has very variable colouration, however the longitudinal blue stripe on the lateral face of ambulatory legs, a specific character of this species, is always present, even after long periods of preservation in alcohol. This species is reported for the first time in the Philippines.