Calcinus laevimanus ( Randall, 1840 ), 1937

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 : 27-28

Calcinus laevimanus ( Randall, 1840)

( Fig. 1D )

Pagurus laevimanus Randall, 1840: 135 (type locality unknown).

Calcinus herbstii – Estampador, 1937: 505; Yap-Chiongco, 1938: 205–206; Estampador, 1959: 53.

Calcinus herbsti – Fize & Serène, 1955: 41–49, Fig. 6 .

Calcinus laevimanus – Buitendijk, 1937: 267; Wooster, 1984: 156–158; Haig & Ball, 1988: 160; Morgan, 1991: 888–890, Figs. 30−33; Gherardi & McLaughlin, 1994: 619–622; Poupin, 1997: 702–703, Figs. 2F , 3G , 4E ; McLaughlin et al., 2007: 162–164, 2 unlabelled figures; Malay & Paulay, 2010, Appendix S1.

Material examined. 1 ovig. female SL 3.5 mm, 2 females SL 2.8–4.5 mm, 2 males SL 5.2–5.5 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 4.4 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 male SL 4.5 mm ( ZRC), stn M15, Baclayon , Bohol I., 9°37.2′N, 123°55.4′E, 0–1 m, 9.vi.2004 ; 1 female SL 5.5 mm, 2 males SL 4.0–5.0 mm, 8 indivs. in shell ( ZRC), stn M18, Gak-Ang Islet, off Panglao I., 9°33.0′N, 123°45.5′E, 0–1 m, 10 & 12.vi.2004 ; 1 ovig. female SL 5.1 mm, 1 male SL 3.7 mm, 4 indivs. in shell ( ZRC), stn M20, Pamilacan I., 9°29.3′N, 123°55.1′E, 0–2 m, 13.vi.2004 ; 1 ovig. female SL 4.6 mm, 2 females SL 3.5–3.6 mm, 3 males SL 4.5–4.6 mm ( ZRC), stn M24, Manga, Panglao I., 9°42.1′N, 123°51.3′E, 0–1 m, 17.vi.2004 ; 3 males SL 4.7–6.8 mm ( ZRC), stn M25, Danao , Panglao I., 9°33.1′N, 123°44.6′E, 0–1 m, 17.vi.2004 ; 1 indiv. in shell ( ZRC), stn M51, Mayacabac , Panglao I., 9°36.8′N, 123°52.2′E, 0 m, 30.vi.2004 .

Habitat. Intertidal, reef flats and seagrass beds, on rocky, sandy, and sand-mud bottoms.

Remarks. This species inhabits the upper intertidal zone where species of Clibanarius are typically predominant.

Figures

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. 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.

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. 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.