Lycopodina tendali, Hestetun & Tompkins-Macdonald & Rapp, 2017

Hestetun, Jon Thomassen, Tompkins-Macdonald, Gabrielle & Rapp, Hans Tore, 2017, A review of carnivorous sponges (Porifera: Cladorhizidae) from the Boreal North Atlantic and Arctic, Zoological Journal of the Linnean Society 181, pp. 1-69 : 53-55

LYCOPODINA TENDALI SP. NOV.

( FIG. 40; TABLE 8)

urn:lsid:zoobank.org:act:055D8E45-1C14-49AE-BA89-061BB01F5667

Type material: Holotype: ZMBN 103463 , ‘ G.O. Sars’ 2008–155, st. 33d (5 August 2008, Pockmark Dodo, Nyegga Shelf, 64°40.12ʹN, 005°15.70ʹE, 730 m) . Paratypes: ZMBN 103464 , ‘ G.O. Sars’ GeoBio 2011, ROV 7 (17 June 2011, Troll Wall , Jan Mayen, 71°17.82ʹN, 005°46.47ʹW, 500 m) ; ZMBN 103466 , R / V ‘ Johan Hjort’ MAREANO 2013–205, st . R1114-443 (22 June 2013, Skjoldryggen, 65°37.63ʹN, 005°35.23ʹE, 611 m) .

Additional material examined: NTNU 14723 , R / V ‘Johan Ruud’, st. 1179-79 (17 August 1979, 70°46ʹN, 017°00ʹE, 990 m) ; R / V ‘Polarstern’ Ark X-31-16+C1 (21 September 1994, 75°00.42ʹN, 012°37.42ʹW, 994 m); BIODEP 2006, ROV 12 (2006, 71°17.98ʹN, 005°46.92ʹW, 616 m), ROV 16 (2006, 71°17.86ʹN, 005°46.29ʹW, 557 m) ; BIODEEP 2007 , ROV 9 (2007, 73°50.23ʹN, 007°38.04ʹE, 1262 m); GeoBio 2009, AGT-2 (5 August 2009, 73°35.19ʹN, 007°44.08ʹE, 2387 m); GeoBio 2012, ROV 4–15 (28 July 2012, 71°17.80ʹN, 005°46.44ʹW, 501 m), ROV 14–8 (1 August 2012, 71°17.91ʹN, 005°46.36ʹW, 465 m) .

Diagnosis: Erect Lycopodina composed of short stem and elongated, fusiform body with a large number of rigid filamentous processes in all directions. Megascleres styles c. 400–3000 µm and microstyles 90–170 µm. Microscleres palmate anisochelae 12–18 µm and forceps spicules 37–57 µm.

Description: Holotype 40 mm long, 3 mm wide, composed of a short stem and an elongated, fusiform body with a large number of filaments in all directions. Stem connected to the substrate with small basal plate. Paratypes and other specimens examined in the range of 15–45 mm long and typically 2–4 mm in diameter at their widest point. Filaments rigid, up to 5 mm in length, and project straight outwards from the body. The tissue of the filaments is typically somewhat retracted, possibly due to fixation, exposing the spicule skeleton. Colour is white to slightly red ( Fig. 40A, B).

Skeleton : The skeleton of the main axis, making up the stem and centre of the body, is made up of style bundles. The longest styles are found making up the supporting skeleton of the projecting filaments which radiate outwards from the centre of the sponge ( Fig. 40C, D).