Dardanus guttatus (Olivier, 1812)

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 : 38

Dardanus guttatus (Olivier, 1812)

Pagurus guttatus Olivier, 1812: 640 (Pacific Ocean, type locality); Estampador, 1937: 503; Yap-Chiongco, 1938: 200; Fize & Serène, 1955: 173–182, Figs. 26 and 27 C–D, pl. 5 nos. 1–3; Estampador, 1959: 51.

Dardanus guttatus – Haig & Ball, 1988: 165; Gherardi & McLaughlin, 1994: 639–640; Cassidy, 2005: 104–109, Figs. 7–9 .

Material examined. 1 damaged individual ( ZRC), Maribohoc Bay, Bohol I., no other data .

Habitat. Intertidal to shallow subtidal, on coralline or rocky substrates; occupies shells with narrow apertures (e.g., strombid and conid shells).

Remarks. Dardanus guttatus is easily distinguished from other species of Dardanus by the distinctive blue patches on the carpi of its chelipeds and ambulatory legs.

Figures

Fig. 7. Dardanus balhibuon, new species, holotype. Female SL 14.3 mm, stn R38, NMCR 40109. A, Left cheliped, outer view; B, Left cheliped, inner view; C, Right cheliped, outer view; D, Right cheliped, inner view. Scale bars = 1 mm.

Fig. 8. Dardanus balhibuon, new species, holotype. Female SL 14.3 mm, stn R38, NMCR 40109. A, Left second pereopod, lateral view; B, Propodus of left third pereopod, lateral view. Scale bars = 1 mm.

Fig. 9. Maximum likelihood phylogram based on COI mitochondrial DNA sequences. Branch support for the major clades are indicated above (= likelihood bootstrap values) and below (= Bayesian posterior probabilities) the branches. Bootstrap values <70% were not reported.