Axinellida Lévi 1953

Item Type: Image Title: Unidentified sponges probably Phakellia ventilabrum and Antho dichotoma Copyright: Serpent Project Species: Phakellia ventilabrum Behaviour: Attached to seafloor with branched organism (potential stylasterine or sponge) Site: Atlantic -- North Sea -- West of Shetland -- SchiehallionNorth Sea -- West of Shetland -- Schiehallion Site Description: Seafloor Depth (m): 450 Latitude: 60 deg 20' 03" N Longitude: 4 deg 05' 56" W Countries: UK -- West of Shetland Habitat: Temperate Gravel and Sand Rig: Regalia Project Partners: Transocean, Subsea 7, BP ROV: Centurion 30 Deposited By: Rob Curry Deposited On: 13 March 2007

Coral Sea, Duration 20 seconds

Acanthella corrugata. Whole sponge, viewed olbiquely from above.

Axinella acanthifera. Transverse section of lobe showing axial skeleton and radiating fibers.

Figure 4.Cyamon amphipolyactinum sp. n., holotype ZMA Por. 22412, A shape (arrow) encrusting a fragment of sandstone (scale 1 cm) B long thin style B1 details of apices of long thin style C short thin style C1 details of apices of short thin style D short thick styles showing size variation D1 detail of head of short thick style E polyactines (three-, four-, five-, and seven-claded) and one amphipolyactine showing size differences E1 detail of bulbous end of lateral cladus F amphipolyactines full-grown and spined (left) next to incipient smooth spicule (right).

Figure 13.Halicnemia geniculata. A Magnifications of the tylostyle heads B Rabdhotylostyles C Oxeas, long, sinuous and thin D Acanthoxeas.

Coral Sea, Duration 17 seconds

Acanthella corrugata. From a section vertical to the surface and radial to the margin; below extreme marginal region. Mesial part of lamella and one surface are shown.

Axinella acanthifera. Longitudinal section through subcylindrical lobe, including both surfaces.

Figure 5.Map showing locality off the Mauritanian coast, where Cyamon amphipolyactinum sp. n. and Cyamon arguinense sp. n. were collected during the Netherlands Mauritania II Expedition, June 1988.

Figure 5.Paratimea oxeata. A Specimen in the coralligenous accretions (arrows) B Large oxeas C Small oxeas D Oxyasters.

Coral Sea, Duration 16 seconds

Acanthella corrugata. Section vertical to the surface and radial to the margin; including margin and both surfaces of the sponge.

Figure 5.Map showing locality off the Mauritanian coast, where Cyamon amphipolyactinum sp. n. and Cyamon arguinense sp. n. were collected during the Netherlands Mauritania II Expedition, June 1988.

Figure 8.Eurypon denisae. A Tylostyles with variable head B Large acanthostyles C Small acanthostyles D Anisoxeas E Magnifications of the extremities of an anisoxea.

Figure 6.Cyamon arguinense sp. n., holotype ZMA Por. 06723, A shape (arrow) encrusting a fragment of sandstone (scale 1 cm) B subtylostyle B1 details of apices of subtylostyle C short thin centrotylote style C1 details of apices and middle part of short thin centrotylote style D polyactines.

Figure 9.Eurypon gracilis sp. n. A Holotype B Skeleton C Portion of the skeleton with large and small echinating acanthostyles D Long style E Oxea F Large acanthostyle with scattered small spines G Small acanthostyle.

Figure 15.Cyamon hamatum sp. n. (Cyamon vickersii sensu Burton and Rao 1932), from S India, A slide BMNH 1931.1.1.19a, labeled ‘Cyamon vickersii (Bow.) Ind. Mus. Coll.’ in Burton’s handwriting B microphoto of section of skeleton made from the slide C characteristic polyactine with recurved hook-like spines on basal cladus and short stubby lateral cladi.

Figure 1.Auletta krautteri sp. n. A Fresh specimen, KML1107, KML Sta. 171/76, West of Flamingo Inlet, BC, scale bar 5 cm B KML1105, vertical longitudinal section, scale bar 3 mm C KML1105, cross section, scale bar 3 mm; D–O. KML1105, spicules D ends of style, scale bar 50 µm E style associated with osculum (under light microscope), scale bar 100 µm F–I various forms of styles F scale bar 100 µm; G. scale bar 100 µm H scale bar 200 µm I scale bar 300 µm J ends of oxea, scale bar 50 µm K–M various forms of oxeas K scale bar 300 µm L scale bar 200 µm M scale bar 300 µm N ends of strongyle, scale bar 50 µm O, P two forms of strongyles, scale bar 300 µm.

Figure 26.Trikentrion africanum sp. n., holotype BMNH 1939.2.20.9, A shape of holotype (scale bar = 1 cm) B details of long thin style C short thin style C1 details of short thin style D various shapes of polyactines E trichodragma E1 detail of trichodragma.

Figure 2.Dragmacidon kishinensis sp. n. A Holotype B–H Paratype A KML1111, in situ Steep I., BC, scale bar approx. 10 cm B KML1114, in situ Texada I., scale bar approx. 5 cm C KML1113, long. section, periphery to right, scale bar 3 mm D KML1113, cross section scale bar 500 µm E KML1113, oxea, scale bar 500 µm F KML1113, oxea tip, scale bar 100 µm G KML1113, style, scale bar 500 µm H KML1113, head of style, scale bar 100 µm.