Calcinus fuscus Malay, Komai & Chan, 2012

(Fig. 1B)

Calcinus anani – Kato & Okuno, 2001: 69, unnumbered photograph; Kawamoto & Okuno, 2003: 74, 1 unnumbered photograph; Asakura, 2002: 29–35, Figs. 2–3, Fig. 21A; Poupin & Lemaitre, 2003: 8, 13 (in part); Okuno & Arima, 2004: 54, Fig. 2A (not Calcinus anani Poupin & McLaughlin, 1998).

Calcinus fuscus Malay, Komai, & Chan 2012: 167, Figs. 1, 2 (Kume Island, Japan, type locality); Legall & Poupin, 2016.

Material examined. 1 ovig. female SL 5.6 mm (ZRC), stn B9, Napaling, Panglao I., 9°33.1′N, 123°44.0′E, 8.5–10 m, 8.vi.2004; 2 males SL 3.0– 4.6 mm (ZRC), stn B15, Sungcolan, Panglao I., 9°38.8′N, 123º49.2′E, 2–4 m, 16.vi.2004; 2 males SL 4.0– 4.1 mm (ZRC), stn B32, Looc, Panglao I., 9°35.8′N, 123°44.6′E, 20 m, 26.vi.2004; 1 female SL 2.5 mm (ZRC), stn B36, north of Doljo, Panglao I., 9°35.9′N, 123°44.5′E, 24 m, 1.vii.2004; 2 females SL 3.4–4.6 mm (ZRC), stn B39, Pontod Lagoon 1 outside, 9°32.8′N, 123°42.1′E, 17–25 m, 3.vii.2004; 1 male SL 4.1 mm (ZRC), stn B42, between Momo and Napaling, Panglao I., 9°37.0′N, 123°46.0′E, 30–33 m, 6.vii.2004; 1 female SL 3.0 mm (ZRC), stn R47, Sungcolan, Panglao I., 9°38.8′N, 123°49.2′E, 4–25 m, 16.vi.2004; 1 male SL 3.2 mm (ZRC), stn R63, Napaling, Panglao I., 9°37.2′N, 123°46.4′E, 3–40 m, 24.vi.2004 .

Habitat. Subtidal, 2–33 m deep, reef slopes and ledges, occasionally from caves in the reef wall.

Remarks. This species is closely related to the Polynesian endemic C. anani Poupin & McLaughlin, 1998 . However the two species are genetically differentiated, and show distinct differences in colouration, depth distribution, and geographic range (see Malay et al., 2012).