Clibanarius serenei Rahayu & Forest, 1993

Malay, Maria Celia (Machel) D., Rahayu, Dwi Listyo & Chan, Tin-Yam, 2018, Hermit crabs of the genera Calcinus Dana, Clibanarius Dana, and Dardanus Paul’son from the PANGLAO 2004 Expedition, with description of a new species and a checklist of the hermit crabs of the Philippines (Crustacea: Anomura: Paguroidea), Raffles Bulletin of Zoology 66, pp. 23-65 : 35-36

Clibanarius serenei Rahayu & Forest, 1993

( Fig. 3C )

Clibanarius 1 – Fize & Serène, 1955: 90–93, pl. 3 nos. 2, 8, 11, 14.

Clibanarius serenei Rahayu & Forest, 1993 (1992) : 762, Figs. 4c , 5c , 6c (Kendari, Indonesia, type locality); Rahayu, 1996: 337.

Material examined. 1 male SL 3.6 mm ( ZRC), stn M11, Sungcolan Bay, Panglao I., 9°38.3′N, 123°49.6′E, 0–3 m, 6.vi.2004 ; 2 females SL 2.7–4.5 mm, 4 males SL 2.6–4.7 mm ( ZRC), stn M28, Abatan River , Bohol I., 9°44.5′N, 123°53.8′E, 0–1 m, 23.vi.2004 ; 1 male SL 6.5 mm ( ZRC), stn M46, Abatan River , Bohol I., 9°44.8′N, 123°55.5′E, 0–1 m, 29.vi.2004 ; 2 males SL 5.2–5.9 mm ( ZRC), stn M47, middle part of Danao embayment, 9°33.1′N, 123°44.9′E, 0 m, 29.vi.2004 ; 1 male SL 6.8 mm, 1 indiv. in shell ( ZRC), stn S35, Abatan River , Bohol I., 9°43.9′N, 123°53.4′E, 29.vi.2004 .

Habitat. Intertidal, mangrove areas and nipa palms, on sandy and muddy substrates.

Remarks. This is a new record for the Philippines.

Figures

Fig. 3. A, Clibanarius longitarsus (De Haan, 1849). Specimen not measured and sexed, stn M52; B, Clibanarius merguiensis De Man, 1888. Male SL 3.5 mm, stn M51; C, Clibanarius serenei Rahayu & Forest, 1993. Male SL 3.6 mm, stn M11; D, Clibanarius snelliusi Buitendijk, 1937. Male SL 5.3 mm, stn M1; E, Clibanarius striolatus Dana, 1852. Specimen not measured and sexed, stn M9; F, Clibanarius virescens (Krauss, 1843). Male SL 4.1 mm, stn M8; G, Dardanus deformis (H. Milne Edwards, 1836). Female SL 8.8 mm, stn M3; H, Dardanus lagopodes (Forskål, 1775). Female SL 6.6 mm, stn M8.

Fig. 4. A, Dardanus sanguinolentus (Quoy & Gaimard, 1824). Female ovig. SL 6.3 mm, stn R6; B, Dardanus balhibuon, n. sp. Holotype female SL 14.3 mm, stn R38, NMCR 40109, preserved colouration; C, Dardanus megistos (Herbst, 1804). Male SL 11.0 mm, stn M8; D, Dardanus pedunculatus (Herbst, 1804). Male SL 13.4 mm, stn N3; E, Dardanus scutellatus. Male SL 9.8 mm, stn D12; F, Dardanus woodmasoni (Alcock, 1905). Male SL 5.8 mm, stn R76.

Fig. 5. Lateral view of left third pereopod. A, Dardanus lagopodes (Forskål, 1775). Male SL 9.8 mm, stn N2, ZRC 2015.0489; B, Dardanus lagopodes (Forskål, 1775). Female SL 7.6 mm, stn R1, ZRC 2015.0488; C, Dardanus sanguinolentus (Quoy & Gaimard, 1824). Male SL 7.8 mm, stn R38, ZRC 2015.0491; D, Dardanus balhibuon, new species, holotype. Female SL 14.3 mm, stn R38, NMCR 40109. Scale bars = 1 mm.

Fig. 6. Dardanus balhibuon, new species, holotype. Female SL 14.3 mm, stn R38, NMCR 40109. A, Shield and cephalic appendages; B, Interocular plate and right ocular acicle; C, Right antennal peduncle; D, Anterior lobe of sternite of third pereopods; E, Telson, dorsal view; F, Posterior lobes of telson, ventral view. Scale bars = 1 mm.