Kolostoneura griffithsi, O’Loughlin & VandenSpiegel, 2010

O’Loughlin, P. Mark & VandenSpiegel, Didier, 2010, A revision of Antarctic and some Indo-Pacific apodid sea cucumbers (Echinodermata: Holothuroidea: Apodida), Memoirs of Museum Victoria 67, pp. 61-95 : 75

Kolostoneura griffithsi sp. nov.

Figures 1b , 2b ; table 2

Material examined. Holotype. South Orkney Is, 60.99°S 46.83°W, 506 m, BAS stn PB–EBS–3, 18 Mar 2006, NMV F168634 .

Diagnosis. Taeniogyrinid species 12 mm long; 10 peltato-digitate tentacles, 3–4 pairs of digits per tentacle; no ossicles in body wall; tentacle rods present, some with central hub, some with bifurcate ends, 96–112 µ m long; solid calcareous ring, plates lack anterior projections/teeth, posterior margin slightly concave; single polian vesicle; madreporite with short curved canal, close to water ring; gonad tubules not present; lacking ciliated funnels.

Colour (preserved). Dark purple-red flecking on grey to off-white semi-translucent body wall.

Distribution. Antarctica, Scotia Sea, South Orkney Is, 506 m.

Etymology. Named for Huw Griffiths (British Antarctic Survey), in appreciation of his role in the BAS BIOPEARL expeditions and the collection of specimens studied here.

Remarks. Kolostoneura griffithsi sp. nov. exhibits the diagnostic characters of the type species of Kolostoneura Becher, 1909 , except that it has fewer tentacle digits, has calcareous ring plates that are not transversely elongate, and lacks ciliated funnels. However, Mortensen (1925) noted that ciliated funnels were sometimes scarce or absent along the mesentery in the material that he examined.

Figures

Figure 1. Colour photos of preserved specimens of apodid species. a, Prototrochus linseae sp. nov. (7 mm long; S Shetland Is; holotype, NMV F168631); b, Kolostoneura griffithsi sp. nov. (12 mm long; insert drawings of tentacle rods, 96–112 µm long; S Orkney Is; holotype, NMV F168634); c, Scoliorhapis biopearli sp. nov. (6 mm long; insert drawing of tentacle rod, 115 µm long; S Shetland Is; holotype, NMV F168633); d, Scoliorhapis massini sp. nov. (20 mm long; Shag Rocks; holotype, NMV F168635); e, Sigmodota magnibacula (Massin and Hétérier, 2004) (15 mm long; S Orkney Is; NMV F168629); f, Taeniogyrus antarcticus Heding, 1931 (15 mm long; S Orkney Is; NMV F168630).

Figure 2. a, drawing of tentacle and part of non-calcareous ring of Achiridota smirnovi sp. nov. (Prydz Bay; holotype, NMV F68687); b, drawing of tentacle and part of calcareous ring of Kolostoneura griffithsi sp. nov. (S Orkney Is; holotype, NMV F168634).