Flagellia, a new subgenus of Haliclona (Porifera, Haplosclerida)

Soest, R.W.M. van

doi:10.5852/ejt.2017.351

Cited by 930 publications

(10 citation statements)

References 16 publications

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“…BC preserved specimens fit fairly closely the type description (de Laubenfels, 1932 as amended by Lee, et al 2007 andVan Soest 2017) with the following exceptions:…”

Section: Remarkssupporting

confidence: 69%

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Some newHaliclonaspecies (Demospongiae, Haplosclerida) from British Columbia Shallow Waters and a Re-Description ofHaliclona mollis(Lambe, 1893)

Ott,

McDaniel,

Harbo

et al. 2024

Preprint

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Background. A numer of Haliclona species (Demospongiae, Haplosclerida) in the Austin and McDaniel collections at the Royal British Columbia Museum (RBCM) are identified only to genus or genus and species. The collections are representative of over 40 years of sampling principally by the late Dr. William C. Austin and one of us (Neil McDaniel) through SCUBA diving on the west coast of British Columbia and specimens provided by others to Dr. Austin. We have selected representative Haliclona species in the collections for detailed examination and placement in subgenera and species (where species were not identified). Haliclona is recognized to have several subgenera, thus identification of specimens to genus and species is incomplete. Our study updates this status for the species examined. Methods. Methods of collection included intertidal scrapings or removal of non-encrusting specimens usually accompanied by in-situ photos, similar methods at SCUBA diving depths (subtidal to 35 m) and from other dredging, trawling and biological sampling activities. Results. We describe eleven new Haliclona (Demospongeae Haplosclerida Chalinadae) species and a range extension for Haliclona (Flagellia) edaphus de Laubenfels, 1930 for shallow waters of Southwestern British Columbia, Canada. New species include Haliclona (Gellius) hartmani n. sp., Haliclona (Gellius) shishalhensis n. sp., Haliclona (Reniera) gesteta n. sp., Haliclona (Rhizoniera) aborescens n. sp., Haliclona (Rhizoniera) blanca n. sp., Haliclona (Rhizoniera) boothensis n. sp., Haliclona (Rhizoniera) filix n. sp., Haliclona (Rhizoniera) kunechina n.sp., Haliclona (Rhizoniera) meandrina n. sp., Haliclona (Rhizoniera) penelakuta n. sp., and Haliclona (Rhizoniera) vulcana n. sp. We also redescribe Haliclona mollis (Lambe, 1893 [1894]) and propose placing it in the subgenus Haliclona. Except for Lambe syntype slides of Haliclona mollis which are deposited at the Canadian Museum of Nature, Ottawa, Canada, all holotypes and voucher specimens of species described are deposited at RBCM.

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“…BC preserved specimens fit fairly closely the type description (de Laubenfels, 1932 as amended by Lee, et al 2007 andVan Soest 2017) with the following exceptions:…”

Section: Remarkssupporting

confidence: 69%

“…Sponge classification follows that of Morrow & Cárdenas (2015) and specifically for Haplosclerida that of de Weerdt (2002de Weerdt ( [2004) and Van Soest (2017).…”

Section: Systematicsmentioning

confidence: 99%

Some newHaliclonaspecies (Demospongiae, Haplosclerida) from British Columbia Shallow Waters and a Re-Description ofHaliclona mollis(Lambe, 1893)

Ott,

McDaniel,

Harbo

et al. 2024

Preprint

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“…Comparison of the single specimen we found from the subgenus Haliclona (Flagellia) with other members of the subgenus (Van Soest, ) suggests that it is an undescribed species (C. Dinn, personal communication); the only other sponge in the subgenus collected nearby is H. (F.) edaphus , from California, but this species has fewer size classes of sigma and shorter oxeas than those found in our specimen. More material, including tissues, will be needed from this species in order to fully describe it.…”

Section: Discussionmentioning

confidence: 48%

Settlement of juvenile glass sponges and other invertebrate cryptofauna on the Hecate Strait glass sponge reefs

Guillas

Kahn

Grant

et al. 2019

Invertebrate Biology

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Glass sponge reefs are endemic to the continental shelf waters of British Columbia and Alaska, where they form complex three-dimensional habitats used by a variety of commercially important fish and invertebrate species. The Hecate Strait and Queen Charlotte Sound Glass Sponge Reefs Marine Protected Area (HSQCS-MPA) was designated in February 2017 to protect 2,410 km 2 of reef habitat. Efforts to establish baseline information regarding reef-associated taxa in the new MPA have documented the diversity of megafauna in detail, but little is understood of the cryptic epifauna inhabiting hidden crevices within the reefs, and even less is understood of larval recruitment, the key reproductive process maintaining long-term reef health and stability. We collected specimens of a reef-building glass sponge, Farrea occa, from the HSQCS-MPA and described the diversity of their epifauna. Five hundred and two organisms from six phyla were documented, including 84 sponges from three classes. We found several glass sponges: known juvenile reef builders (two Aphrocallistes vastus and two Heterochone calyx); the lyssacine sponge Leucopsacus scoliodocus, previously known in Canadian waters only from Jervis Inlet; and an unidentified dictyonine sponge previously unknown to waters of British Columbia. Also present were the carnivorous sponge Lycopodina occidentalis, 11 individuals of Desmacella austini, evidence for a new species in the subgenus Haliclona (Flagellia), and a clathrinid calcareous sponge. The growth stages we observed suggest multiple settlement events by glass sponge larvae between February and early March. Of the 502 invertebrates, 460 were attached to dead sponge skeleton despite live tissue being much more available as substrate. This study highlights trends in recruitment at sponge reefs, explores factors that may affect larval settlement, describes new sponge associations, and provides the first description of the range of macrofauna found on glass sponges, acting as a baseline for continued monitoring of the MPA. K E Y W O R D S glass sponge reef, Hexactinellida, marine protected area, Porifera, recruitment

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“…A possible explanation for the somewhat ambiguous position of H. poecillastroides inside Petrosiidae is the lack of genetic studies specifically dealing with this family. We foresee that H. poecillastroides may represent a potential new Petrosiidae genus with mixed characters between Neopetrosia and Xestospongia , gathering several chalinid species with Petrosiidae characters, such as: Haliclona ( Halichoclona ) magna (Vacelet, 1969), H. ( Halichoclona ) fistulosa (Bowerbank, 1866) or some Haliclona ( flagellia ) species (Fourt et al ., 2017; Van Soest, 2017; Dinn, 2020). Those species are large, massive, massive-encrusting or tubular, with low spongin content, having a characteristic layer in the ectosome, large subectosomal spaces, and a low-organized choanosome with some ascending track of spicules (de Weerdt, 2000).…”

Section: Discussionmentioning

confidence: 99%

Poorly known sponges in the Mediterranean with the detection of some taxonomic inconsistencies

et al. 2020

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The poorly known sponge species Axinella vellerea (Topsent, 1904), Acarnus levii (Vacelet, 1960) and Haliclona poecillastroides (Vacelet, 1969) are reported from bottom-trawl samples off the Balearic Islands, Western Mediterranean. A re-description is provided for all three species and the Folmer fragment of cytochrome oxidase subunit I (COI) obtained for A. levii and H. poecillastroides. This is the second report of A. vellerea in the Mediterranean, the first time that A. levii is reported outside Corsica and the first time that H. poecillastroides is documented outside the Gulf of Lion, France. The systematic allocation of A. levii and H. poecillastroides is discussed based on a COI phylogenetic analysis and morphology. The poorly understood phylogeny of the Haplosclerida does not permit us to find a proper allocation for H. poecillastroides, although its current position in the genus Haliclona or the family Chalinidae is not defensible. On the other hand, A. levii currently fits best in the family Microcionidae, and seems related to some Clathria species with mixed features between Clathria and Acarnus. Considering that the species of the genus Acarnus shares a strong synapomorphy (the possession of Cladotylotes), it is plausible for all Acarnus species to be Microcionids. We conclude that H. poecillastroides needs to be reallocated to a new genus: Xestospongia poecillastroides comb. nov. (Petrosiidae). However, a reallocation of A. levii is not advisable for the moment, as this would imply major systematic changes such as the reallocation of the whole genus Acarnus to Microcionidae, and the redescription of Microcionidae and Acarnidae.

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Flagellia, a new subgenus of Haliclona (Porifera, Haplosclerida)

Cited by 930 publications

References 16 publications

Some newHaliclonaspecies (Demospongiae, Haplosclerida) from British Columbia Shallow Waters and a Re-Description ofHaliclona mollis(Lambe, 1893)

Some newHaliclonaspecies (Demospongiae, Haplosclerida) from British Columbia Shallow Waters and a Re-Description ofHaliclona mollis(Lambe, 1893)

Settlement of juvenile glass sponges and other invertebrate cryptofauna on the Hecate Strait glass sponge reefs

Poorly known sponges in the Mediterranean with the detection of some taxonomic inconsistencies

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