Clathria (Clathria) priestleyae Goodwin & Berman & Hendry 2019, sp. nov.

• Main Authors: Goodwin, Claire E., Berman, Jade, Hendry, Katharine R.
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2019
• Subjects: Biodiversity; Taxonomy; Animalia; Porifera; Demospongiae; Poecilosclerida; Microcionidae; Clathria; Clathria priestleyae; Booth Island; Martin Islands
• Online Access: https://doi.org/10.5281/zenodo.5584976; http://treatment.plazi.org/id/03B087EDFFD3FF82FF59FF35FBACDB89

Clathria ( Clathria ) priestleyae sp. nov. (Figure 14) lsid:zoobank.org:act: 7FE528FB-040A-4C14-9A73-A4695DF0E64B Specimens. Holotype: BELUM. Mc 2015.638 Rocks near San Martin Islands (65°41.297’S, 65° 20.091’W), depth 6–21 m; collected by C. Goodwin and E. Priestley, 17/02/2015. Paratypes : BELUM. Mc 2015.692, BELUM.Mc2015.703 and BELUM. Mc 2015.713 Vieugue Island (65°38.758’S, 65° 12.540’W), depth 10–22 m; collected by C. Goodwin and E. Priestley, 23/02/2015; BELUM. Mc 2015.721 Port Charcot, Booth Island (65°03.853’S, 64° 01.868’W), depth 6–16 m; collected by C. Goodwin and E. Priestley, 23/02/2015. BELUM. Mc 2015.758 Paradise Bay Wall (64°53.841’S, 62° 52.391’W), depth 14–21 m; collected by C. Goodwin and E. Priestley, 24/02/2015.and BELUM. Mc 2015.775 Paradise Bay Wall (64°53.841’S, 62° 52.391’W), depth 10–24 m; collected by C. Goodwin and E. Priestley, 25/02/2015. Comparative material examined. Clathria pauper Brondstedt, 1927. BMNH 30.11.5.2a (tissue section and spicule preparation). Labelled ‘N of Discovery Islet from type’. Etymology. Named after Emily Priestley who was an invaluable member of the expedition dive team. External morphology. In situ appearance (Figure 14A): Pale yellow encrusting sponge forming patches of variable size (5–> 20 cm) on bedrock. Surface covered with spiky projections up to 2 cm in length, these are sometimes branched. The projections are cored by fibres of spicules which are visible through the projection as a central core. Preserved appearance. Fairly soft brown basal cushion with projecting, tapering spikes, up to 1 cm in length. Surface velvety, finely hispid. Skeleton (Figure 14B): In the basal cushion the choanosomal skeleton is an irregular plumo-reticulation of thick ascending fibres of primary styles (up to 20 spicules thick) which are echinated by the acanthostyles, joined by thinner secondary tracts cored by 2–3 primary styles. In the spiky surface projections, a thick ascending fibre of principal styles (up to 20 spicules thick) cores the centre of the ...