Haliclona (Gellius) flagellifera Ridley & Dendy 1886

• Main Authors: Göcke, Christian, Janussen, Dorte
• Format: Other/Unknown Material
• Language: unknown
• Published: Zenodo 2013
• Subjects: Biodiversity; Taxonomy; Animalia; Porifera; Demospongiae; Haplosclerida; Chalinidae; Haliclona; Haliclona flagellifera; Marion Island
• Online Access: https://doi.org/10.5281/zenodo.6145355; http://treatment.plazi.org/id/03EF87D0CD04883B80BEFC14FDF4FABE

Haliclona (Gellius) flagellifera (Ridley & Dendy, 1886) (Fig. 20, Tab. 16) Haliclona (Gellius) flagellifera (Ridley & Dendy, 1886): Samaai & Gibbons 2005: 84–85, fig. 60, tab. 14. Synonymy: Adocia flagellifera (Ridley & Dendy, 1887): Burton 1938:7. Koltun 1964: 104. Gellius flagellifer Ridley & Dendy, 1886: 333, 1887: 42, pl. 13, figs. 5, 10. Dendy 1922: 26, 1924: 320. Koltun 1959: 212, fig. 170. Boury-Esnault & van Beveren 1982: 111–113, figs. 34a–c. Haliclona flagellifer (Ridley & Dendy, 1886): Burton 1959: 218. Sigmadocia flagellifera (Ridley & Dendy, 1886): de Laubenfels 1936: 69. Bergquist & Warne 1980: 22–23, pl. 8, b. Pulitzer- Finali 1993: 327. Material. 1 fragmentary specimen from station 048-1 (SMF 11838), 602.1 m, 70° 23.94' S, 8° 19.14' W, 12.01.2008. Material examined for comparison: BMNH 1887.5.2.252, holotype, Challenger colln., off Marion Island, 50–75 ftms., wet specimen; BMNH 1946.11.25.30 “Siboga” Expedition, Dutch East Indies, 1899–1900, from Amsterdam Museum, wet specimen. Description. Specimen of station 048-1 (Fig. 20 A) fragmentary; shape of living sponge unknown. Largest fragment a blade-like structure, about 7 cm in diameter and about 2 cm thick, bulbous, both surfaces similar. Tissue very porous with large canals. A distinct thin epidermis with smaller pores covering the sponge; choanosome with large pores distinctly visible through dermal membrane. Color in ethanol brownish beige. Consistency quite tough, a bit brittle, inflexible. Skeleton: Skeleton (Fig. 20 B) poorly organized, with a tendency to become anisotropic with primary tracts of about four oxeas, intercrossing poorly developed secondary tracts mostly made up of single oxeas only. Near the pores/cavities within the tissue, skeleton organized in an alveolate manner. Microscleres free within the choanosome. Epidermis very thin, a detachable monolayer of densely organized spicules. Spiculation (Tab. 16): Main spicules almost straight oxeas (Fig. 20 C) with a mean length about 640 µm and a ...