Dardanus deformis (H. Milne Edwards, 1836 )

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 : 37-38

Dardanus deformis (H. Milne Edwards, 1836)

( Fig. 3G )

Pagurus deformis H. Milne Edwards, 1836 272, Fig. 4 , pl. 13 (Aldabra and Seychelles, type localities); Yap-Chiongco, 1938: 195–196; Fize & Serène, 1955: 199–207, Fig. 31 and 33E–F, pl. 4 no. 6.

Pagurus biformis – Estampador, 1959: 50 (misspelling of Pagurus deformis ).

Dardanus deformis – Ball & Haig, 1972: 92–93; Gherardi & McLaughlin, 1994: 638–639; Cassidy, 2005: 96–102, Figs. 1–5 ; McLaughlin et al., 2007: 79–80, 2 unlabelled figures.

Material examined. 1 ovig. female SL 11.1 mm, 4 females SL 9.7–14.3 mm, 1 male SL 11.0 mm ( ZRC), stn M1, Alona Beach, Panglao I., 9°32.9′N, 123°46.6′E, 0–1 m, v.2004 to vii.2004; 1 male SL 9.8 mm ( ZRC), stn M2, west end of Alona Beach, Panglao I., 9°32.8′N, 123°45.9′E, 0–2 m, 30.v.2004 ; 1 ovig. female SL 8.8 mm ( ZRC), stn M3, Danao, Panglao I., 9°32.5′/33.1′N, 123°44.7′/45.5′E, 0–2.5 m, 31.v.2004 ; 1 ovig. female SL 7.4 mm, 4 females SL 6.9–8.2 mm, 2 males SL 3.9–13.2 mm ( ZRC), stn M7, Momo Beach, Panglao I., 9°36.1′N, 123°45.2′E, 0–3 m, 1.vi.2004 ; 1 female SL 7.5 mm ( ZRC), stn M8, Doljo, north coast, Panglao I., 9°35.4′N, 123°44.3′E, 0–1 m, 2.vi.2004 ; 1 ovig. female SL 12.0 mm ( ZRC), stn M17, Pontod Islet, Panglao I., 9°33.4′N, 123°43.0′E, 0–1 m, 9.vi.2004 ; 1 female SL 10.0 mm ( ZRC), stn M22, Napaling, Panglao I., 9°37.2′N, 123°46.4′E, 0–3 m, 15.vi.2004 ; 1 female SL 8.0 mm ( ZRC), stn M51, Mayacabac, Panglao I., 9°36.8′N, 123°52.2′E, 0 m, 30.vi.2004 ; 2 ovig. females SL 11.0– 11.9 mm, 3 females SL 9.6–12.8 mm, 1 male SL 12.3 mm ( ZRC), stn M58, Balicasag I., 9°31.3′N, 123°41.0′E, depth unknown, 4.vii.2004 ; 1 indiv. in shell ( ZRC), stn N6, Tawala, Panglao I., 9°32.9′N, 123°47.0′E, 40–45 m, 11. vi.2004 ; 1 female SL 6.6 mm ( ZRC), stn PN1, Balicasag I., 9°31.2′N, 123°41.3′E, 50–500 m, v.2004 to vii.2004; 1 ovig. female SL 9.0 mm ( ZRC), stn R26, Sungcolan Bay, Panglao I., 9°38.4′/38.5′N, 123°49.1/ 49.4′/49.7′E, 1–5 m, 6, 20, & 30.vi.2004 ; 1 female SL 11.8 mm ( ZRC), stn R42, Baclayon Takot, Bohol I., 9°37.1′N, 123°52.6′E, 8–22 m, 12.vi.2004 ; 1 female SL 11.8 mm ( ZRC), stn R42, Baclayon Takot, Bohol I., 9°37.1′N, 123°52.6′E, 8–22 m, 12.vi.2004 ; 1 female SL 8.3 mm ( ZRC), stn R50, Looc, Panglao I., 9°35.7′N, 123°44.4′E, 3–7 m, 17.vi.2004 ; 1 male SL 8.0 m ( ZRC), stn S5, Napaling, Panglao I., 9°37.1′N, 123°46.1′E, 2–4 m, 8.vi.2004 ; 2 females SL 11.5–14.2 mm ( ZRC), off Alona Beach Resort , Panglao I .

Habitat. Intertidal to subtidal, 0–45 m deep, reef flats, seagrass beds, and reef slopes, on coralline, sandy, and rocky substrates; associated with anemones.

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. 1. A, Calcinus elegans (H. Milne Edwards, 1836). Male SL 10.0 mm, stn M1; B, Calcinus fuscus Malay, Komai & Chan, 2012. Male SL 4.1 mm, stn B42; C, Calcinus gaimardii (H. Milne Edwards, 1848). Female SL 5.6 mm, stn R14; D, Calcinus laevimanus (Randall, 1840). Male SL 4.4 mm, stn M2; E, Calcinus latens (Randall, 1840). Male SL 3.0 mm, stn R1; F, Calcinus lineapropodus Morgan & Forest, 1991. Male SL 4.5 mm, stn R16; G, Calcinus minutus Buitendijk, 1937. Male SL 4.7 mm, stn R10; H, Calcinus morgani Rahayu & Forest, 1999. Female ovig SL 4.8 mm, stn M2.

Fig. 2. A, Calcinus pulcher Forest, 1958. Male SL 4.8 mm, stn R24; B, Clibanarius ambonensis Rahayu & Forest, 1993. Male SL 4.0 mm, stn M16; C, Clibanarius antennatus Rahayu & Forest, 1993. Male SL 3.9 mm, stn M34; D, Clibanarius corallinus (H. Milne Edwards, 1836). Male SL 3.0 mm, stn M58; E, Clibanarius cruentatus (H. Milne Edwards, 1848). Specimen not measured and sexed, Stn M2; F, Clibanarius englaucus Ball & Haig, 1972. Male SL 4.2 mm, stn M1; G, Clibanarius infraspinatus (Hilgendorf, 1869). Male SL 9.0 mm, stn S53; H, Clibanarius laevimanus Buitendijk, 1937. Specimen not measured and sexed, stn M9.

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.