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Platydoris scabra (Cuvier, 1804)
(fig. 13, pl. 6 figs 4, 5)
Platydoris eurychlamys Bergh, 1877b: 510, pl. 59 figs 11-18, pl. 60 figs 1, 2; Bergh, 1890: 914 (Ambon and Edam, Indonesia); Bergh, 1905: 137 (Kwandang Bay, Indonesia).
Discodoris ? sibogae Bergh, 1905: 104, pl. 1 fig. 8 (Binonka, Indonesia).
Platydoris scabra Edmunds, 1971: 354, figs 4f, g, 7; Yonow, 1984: 221, fig. 5; Yonow, 1990: 294, pl. 15; Marshall & Willan, 1999: 81, fig. 143; Dorgan et al., 2002: 271, figs 2L, 6A, 7, 8.
Material.— RMNH.MOL.131654, RBE Stn 30, Suli, Hitu, 1.5 m depth, “nudibranch, sturdy,” 29.xi.1990, leg. J.C. den Hartog, pres. specimen would be approx. 60 × 40 mm uncurled, photos M. Lavaleye 35-13/14.
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Fig. 13. Platydoris scabra. View of head and oral tentacles of 17 mm specimen.Doris scabra Cuvier, 1804: 466 (Timor, Indonesia). |
Remarks.— This species is well known throughout the tropical Indo-Pacific, recorded from Indonesia by Cuvier (1804), Bergh (1877b, 1905), and Dorgan et al. (2002). This specimen is identical in coloration to the photographs provided in Yonow (1990), Marshall & Willan (1999), and Dorgan et al. (2002). The preserved specimen is very stiff, and spiculose to the touch. The dense chocolate brown patches are generally symmetrical about the midline. The yellow-orange or orange line on the mantle margin and rhinophoral and branchial pockets is very characteristic (pl. 6 fig. 4), but is no longer visible in the preserved material. The branchial pocket is raised and produced into six lobes. Ventrally, only the top of the foot bears brown speckles: the remainder is creamy white (pl. 6 fig. 5). The head is bent in preservative but the visible left oral tentacle is triangular (fig. 13).Family Phyllidiidae