Madrella ferruginosa Alder and Hancok, 1864

(Figure 28 B)

Material examined. Four specimens. MHN-YT59, ZRP, 0 4 May 2011, 1m, 8mm; MB28-004732, ZRP, 0 8 Sep. 2013, 0.5m, 12mm; MB28-004 785, ZRP, 18 Dec. 2013, 0.5m, 7mm; MB28-004838, POB, 0 9 May 2014, 18m, 15mm, collected by J. Strömvoll.

Habitats. Subtropical tidal reefs and rocky reefs.

Occurrences. Ponta do Ouro and Zavora.

Geographic distribution. Indo-west Pacific. Marshall Islands, Japan (Gosliner & Fahey 2011), Australia (Nimbs & Smith 2016), India (Alder & Hancock 1864), Tanzania (Eliot 1904d), Madagascar (Gosliner & Fahey 2011), South Africa (Fraser 2001; Gosliner et al. 2008) and Mozambique.