Halgerda wasinensis Eliot, 1904

(Figure 16 G–I)

Material examined. Sixty-one specimens. MB28-004416, ZKW, 0 6 Jun. 2010, 50m, 16mm; MB28-004439, MB28-004440, MB28-004441, MB28-004442, MHN-YT105, MHN-YT106, ZGWS, 0 2 Feb. 2012, 17– 22m, 14– 42mm; UL-YT136, ZWH, 0 5 Feb. 2012, 18m, 41mm; MHN-YT146, MB28-004460, MB28-004461, ZWH, 0 5 Feb. 2012, 16– 18m, 12–40mm; MB28-004566, ZRP, 0 7 Jun. 2012, 2m, 19mm; MB28-004 655, ZDN, 0 8 Mar. 2013, 60m, 17mm; MB28-004678, ZRP, 25 May 2013, 0.5m, 48mm; MB28-004696, ZY, 18 Aug. 2013, 33m, 38mm; MB28-004701, ZWH, 2 Aug. 2013, 15m, 39mm; MB28-005 0 75, ZAR, 0 2 Aug. 2013, 33m, 39m; MB28- 0 0 4709, ZRP, 0 8 Aug. 2013, 0.5m, 24mm; MB28-004717, MB28-004720, ZT, 11 Aug. 2013, 33– 45mm, 22 and 44mm; MB28-004749, PA, 12 Oct. 2013, 25m, 38mm; MB28-004751, ZRP, 19 Oct. 2013, 0.5m, 34mm; MB28- 0 0 4770, VISP, 12 Aug. 2013, 4m, 11mm; MB28-004 779, VPP, 13 Dec. 2013, 10m, 19mm; ZMBN11 7053, ZWH, 11 Jan. 2014, 18m, 30mm; ZMBN117053, ZMBN117055, BB, 23 Jan. 2014, 10m, 35 and 38mm, respectively; MB28-004795, 3spcs. BB, 23 Jan. 2014, 10m, 28–32mm; MB28-004797, MB28-004798, PAE, 0 1 Feb. 2014, 0.3m, 20–22mm; MB28-004805, 2 spcs., ZWH, 0 8 Mar. 2014, 16m, 36–38mm; MB28-004808, 28 Mar. 2014, ZWH, 16m, 25mm; MB28-004810, 4 Apr. 2014, PAE, 23m, 44mm; MB28-0 0 4826, POA, 0 7 May 2014, 15m, 24mm; MB28-004851, 2 spcs., POD, 11 May 2014, 15m, 42–43mm; MB28-00 4918, 3 spcs., PMP, 23 Jun. 2014, 20m, 20–28mm; MB28-004 951, ZLC, 27 Dec. 2014, 15m, 30mm; MB28-0 0 4963, ZSC, 28 Jan. 2015, 21m, 35mm; MB28-004968, ZY, 24 Feb. 2015, 31m, 32mm; MB28-004972, ZAR, 0 8 Mar. 2015, 32m, 21mm; MB28- 0 0 4973, ZRP, 21 Mar. 2015, 0.5m, 30mm; MHN-YT1501, ZDN, 25 Mar. 2015, 60m, 10mm, collected by J. Wright; MB28-005002, MHN-YT1551, VPP, 18 May 2015, 8– 12m, 19–38mm; MB28-005008, ZA51, 12 Jun. 2015, 11m, 32mm; MB28-005023, NGF, 24 Feb. 2016, 32mm, 32m; ZMBN105600, PP, 28 May 2015, 12m, 14mm.

Habitats. Subtropical tidal reefs, rocky reefs and tropical coral reefs.

Occurrences. Ponta do Ouro, Zavora, Pomene, Nuarro, Pemba and Vamizi Island .

Geographic distribution. Indian Ocean. Maldives (Yonow 1994), Christmas Island, Madagascar (Gosliner et al. 2008), South Africa (Gosliner 1987), Kenya, Tanzania (Rudman 1978) and Mozambique.

Remarks. The base colour of this species varies from light, translucent-white to dark brown.