Tambja morosa (Bergh, 1877)

Nembrotha morosa Bergh, 1877: 457 (Philippines).

Trevelyana morosa Bergh, 1873: pl. 25 fig. 9, pl. 33 fig. 7 (Philippines).

Tambja kushimotoensis Baba. - Yonow and Hayward 1991:12, figs. 7F, 12D (Mauritius).

Tambja morosa . - Gosliner 1987: 100, fig. 183 (South Africa); Pola et al. 2006: 493, figs.1A, B, I, fig. 2 (Tanzania + West Pacific).

Material.

Mauritius: 22 × 8 × 10 mm, Japan Wreck, 25 m depth, 04 March 1990, leg. H Debelius and (poor) photograph of two mating individuals; photographs of three individuals http://seaslugs.free.fr/nudibranche/a_intro.htm.

Description/Distribution.

Preserved specimen translucent but retains blue pigment in creases on tail, gills, and rhinophores. The species was previously recorded from Mauritius by the author, and appears to be an infrequently encountered species in the western Indian Ocean (see NudiPixel for three records from India, Kenya, and Madagascar).