Crella (Crella) hennequinae 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; Crellidae; Crella; Crella hennequinae; Booth Island; Martin Islands; Southern Ocean
• Online Access: https://doi.org/10.5281/zenodo.5584972

Crella ( Crella ) hennequinae sp. nov. (Figure 7, Table 5) lsid:zoobank.org:act: 81218B8F-1C10-4711-A2E2-D51FD220A60 Type material: Holotype: BELUM. Mc 2015.725 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. Paratypes: BELUM. Mc 2015.693 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 2015.640 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. Other specimen : BELUM. Mc 2015.736 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. Diagnosis. Southern Ocean Crella ( Crella ) with one category of lightly and evenly spined basal acanthostyles. Etymology. Named after Juliette Hennequin, first mate of the expedition vessel the Hans Hansson, in recognition of her support. External morphology. In situ appearance (Figure 7A): Bright orange crust with prominent pore sieves. Growing over bedrock. Some patches were very large (> 50 cm in diameter). Preserved appearance. Fairly firm pale yellow crust with smooth, detachable, surface on which pore sieves are clearly visible. Storage ethanol has turned orange. Skeleton (Figure 7B): Plumose. Strongly hispid ascending columns of acanthostyles and tornotes. Dense ectosomal layer of acanthoxea. Spicules: Measurements given here are from the holotype BELUM.Mc2015.725. See Table 5 for dimensions of paratypes. Acanthostyles (Figure 7C,D): 454(465)477 by 16(20) 26 µm. Slightly curved with small spines very sparsely scattered along their length, in some spicules these are so sparse that they initially appear smooth. The heads are not tylote. There is no secondary class of echinating acanthostyles. Ectosomal anisotornotes (Figure 7E): 294(325)353 by 7(11) 15 µm. Slightly fusiform tornotes with asymmetrical ends, one end usually smoothly tapered and one more abruptly pointed. Ectosomal ...