Psolus salottii Mackenzie and Whitfield, 2011

Davey, Nicola, 2013, The Psolidae of New Zealand and some additions to the Macquarie Ridge fauna (Echinodermata: Holothuroidea: Psolidae), Memoirs of Museum Victoria 70, pp. 51-67 : 55-59

Psolus salottii Mackenzie and Whitfield, 2011

Table 1, Figure 1

Material examined. Macquarie Ridge: NIWA 39894 (1) Stn TAN0803/48, 51.09°S 161.97°E, 462–524 m, 04/04/2008; NIWA 39928 (2) Stn TAN0803/48, 51.09°S 161.97°E, 462–524 m, 04/04/2008; NIWA 39979 (3) Stn TAN0803/52, 51.04°S 161.98°E, 506–560 m, 04/04/2008; NIWA 39993 (4) Stn TAN0803/52, 51.04°S 161.98°E, 506–560 m, 04/04/2008; NIWA 40010 (3) Stn TAN0803/52, 51.04°S 161.98°E, 506–560 m, 04/04/2008; NIWA 40047 (1) Stn TAN0803/53, 51.04°S 162.01°E, 398–489 m, 05/04/2008; NIWA 40355 (18) Stn TAN0803/71, 52.34°S 160.68°E, 488–542 m, 09/04/2008; NIWA 40396 (14) Stn TAN0803/71, 52.34°S 160.68°E, 488–542 m, 09/04/2008.

Description. See Whitfield and Mackenzie (2011). The material examined matches the description well, and we make the following additions: Psolus salottii Whitfield and Mackenzie, 2011 , up to 71 mm length ( NIWA 40355), 54 mm wide, 29 mm high. Oral valves large and inconsistent in shape, ranging from rectangular with blunt ends to approximately triangular with pointed tips. Valves usually 10; always greater than 5.

Colour. Preserved: white.

Distribution. South Australia, Macquarie Ridge (Whitfield and Mackenzie, 2011) and this paper, 400– 600 m.

Remarks. The original description was based on one holotype specimen from southern Australia and four paratypes from Macquarie Island. We found an additional 46 specimens, confirming and extending the Whitfield and Mackenzie (2011) description. The dome-like lumps on the dorsolateral scales are not always visible, and they may only be on a few scales. The multilayered ossicles in the preparation are always distinctly dome-like and provide a useful diagnostic character for this species.