Two new species of calcareous sponges (Porifera: Calcarea) from the deep Antarctic Eckström Shelf and a revised list of species found in Antarctic waters

Rapp, Hans Tore; Göcke, Christian; Tendal, Ole Secher; Janussen, Dorte

doi:10.11646/zootaxa.3692.1.9

Cited by 10 publications

(6 citation statements)

References 26 publications

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“…The high degree of endemism has also been reported for other sponges in the Antarctic (e.g. Janussen & Tendal, 2007; Rapp et al , 2013) and extends to Antarctic deep-sea sponge communities, which instead are more closed elated to shallower Antarctic habitats (Göcke & Janussen, 2013). Asbestopluma (A.)…”

Section: Discussionsupporting

confidence: 54%

Cladorhizidae (Porifera, Demospongiae, Poecilosclerida) of the deep Atlantic collected during Ifremer cruises, with a biogeographic overview of the Atlantic species

Hestetun

Fourt²,

Vacelet³

et al. 2013

J. Mar. Biol. Ass.

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International audienceThe study presents Cladorhizidae collected during Ifremer cruises in the Atlantic Ocean from 1981 to 2004. Fifteen species are described from the genera Abyssocladia, Asbestopluma, Chondrocladia and Cladorhiza, with complete descriptions of five new species. While a couple of species were collected at 670-1010 m depth at the Rockall Bank, most species were collected at middle to lower bathyal and abyssal depths (similar to 2000-5000 m), ranging from the northern Atlantic to the Mid-Atlantic Ridge and the coast of Africa at Gabon-Congo. A biogeographic analysis of currently known Arctic, Atlantic and some Antarctic species shows that the majority of included cladorhizids are described from the north-east Atlantic and Arctic Oceans while a lower number of species are known from other parts of the Atlantic Ocean. Large regions are poorly investigated, and previously undescribed species can be expected when sampling in these areas. A regional mostly endemic cladorhizid fauna is predicted for shelf and upper slope areas. Species in the lower bathyal and abyssal seem on the other hand to have a wider geographical distribution

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Section: Discussionsupporting

confidence: 54%

Cladorhizidae (Porifera, Demospongiae, Poecilosclerida) of the deep Atlantic collected during Ifremer cruises, with a biogeographic overview of the Atlantic species

Hestetun

Fourt²,

Vacelet³

et al. 2013

J. Mar. Biol. Ass.

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“…Most of the currently known Antarctic sponge species were discovered during the oceanographic campaigns of the twentieth century [ 11 ], [ 12 ], [ 13 ], [ 14 ], [ 8 ], [ 15 ], [ 16 ], [ 17 ], [ 18 ], [ 19 ], [ 20 ], [ 21 ], [ 22 ], [ 23 ]. However, recent findings of many new species [ 24 ], [ 7 ], [ 25 ], [ 26 ], [ 27 ], [ 28 ], [ 29 ], [ 30 ], [ 31 ], [ 32 ] suggest that the sponge biodiversity of this area has not been fully explored yet and that more species remain to be discovered.…”

Section: Introductionmentioning

confidence: 99%

Phylogenetic Reassessment of Antarctic Tetillidae (Demospongiae, Tetractinellida) Reveals New Genera and Genetic Similarity among Morphologically Distinct Species

Carella¹,

Agell²,

Cárdenas³

et al. 2016

PLoS ONE

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Species of Tetillidae are distributed worldwide. However, some genera are unresolved and only a few genera and species of this family have been described from the Antarctic. The incorporation of 25 new COI and 18S sequences of Antarctic Tetillidae to those used recently for assessing the genera phylogeny, has allowed us to improve the resolution of some poorly resolved nodes and to confirm the monophyly of previously identified clades. Classical genera such as Craniella recovered their traditional diagnosis by moving the Antarctic Tetilla from Craniella, where they were placed in the previous family phylogeny, to Antarctotetilla gen. nov. The morphological re-examination of specimens used in the previous phylogeny and their comparison to the type material revealed misidentifications. The proposed monotypic new genus Levantinella had uncertain phylogenetic relationships depending on the gene partition used. Two more clades would require the inclusion of additional species to be formally established as new genera. The parsimony tree based on morphological characters and the secondary structure of the 18S (V4 region) almost completely matched the COI M1-M6 and the COI+18S concatenated phylogenies. Morphological synapomorphies have been identified for the genera proposed. New 15 28S (D3-D5) and 11 COI I3-M11 partitions were exclusively sequenced for the Antarctic species subset. Remarkably, species within the Antarctic genera Cinachyra (C. barbata and C. antarctica) and Antarctotetilla (A. leptoderma, A. grandis, and A. sagitta), which are clearly distinguishable morphologically, were not genetically differentiated with any of the markers assayed. Thus, as it has been reported for other Antarctic sponges, both the mitochondrial and nuclear partitions used did not differentiate species that were well characterized morphologically. Antarctic Tetillidae offers a rare example of genetically cryptic (with the traditional markers used for sponges), morphologically distinct species.

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“…Van Soest (2001) allocated the polejaevi in the genus Leuconia , and following the most recent revision the name should be Leucandra (Borojevic et al , 2002b). As noted by Rapp (2006) presence of subcortical spaces is not unique for Pericharax within the Calcarea (Rapp et al , 2011, 2013; Klautau et al, 2013), and may also be found in some Leucandra . Except for the subcortical spaces and diactines slightly projecting through the cortex, L. polejaevi is almost identical with Leucandra egedii (Schmidt, 1869).…”

Section: Systematicsmentioning

confidence: 93%

“…Leucascus lobatus (Rapp, 2004a, b;Cavalcanti & Klautau, 2011;Rapp et al, 2011Rapp et al, , 2013Cavalcanti et al, 2013).…”

Section: Synonyms and Citationsunclassified

A monograph of the calcareous sponges (Porifera, Calcarea) of Greenland

Rapp

2013

J. Mar. Biol. Ass.

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Greenland has more than 200 years of history of studies of the sponge fauna and is the type locality for a number of species. Many of these have not been encountered since, and as the type material has been hard to find or even lost, their taxonomic status has remained uncertain. In this study all species of calcareous sponges previously reported from Greenland are reviewed. The revision is based predominantly on new or unidentified material collected during various expeditions, but also on material used by previous authors. This includes samples from all coasts of Greenland, from the southernmost Kap Farvel area to Peary Land on the northern coast, some of the northernmost records of calcareous sponges ever. Greenland is a transition zone between the western and eastern Atlantic boreal calcareous sponge faunas, being home to species from both sides of the North Atlantic combined with some true Arctic species. There is also a strong link between the Canadian and Greenlandic sponge faunas. Twenty-eight species have been identified, from which six are new to Greenland and one is new to science. New records for Greenland are: Clathrina arnesenae (Rapp, 2006); Clathrina camura (Rapp, 2006); Clathrina pellucida (Rapp, 2006); Sycon abyssale Borojevic & Graat-Kleeton, 1965; Leucandra valida Lambe, 1900; and Sycettusa thompsoni (Lambe, 1900). Clathrina tendali sp. nov. has been described from western Greenland and Leucosolenia corallorrhiza (Haeckel, 1872) and Leucandra penicillata (Schmidt, 1869) have been resurrected. Keys for identification of higher taxa and the different species of Greenlandic Calcarea are provided.

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Two new species of calcareous sponges (Porifera: Calcarea) from the deep Antarctic Eckström Shelf and a revised list of species found in Antarctic waters

Cited by 10 publications

References 26 publications

Cladorhizidae (Porifera, Demospongiae, Poecilosclerida) of the deep Atlantic collected during Ifremer cruises, with a biogeographic overview of the Atlantic species

Cladorhizidae (Porifera, Demospongiae, Poecilosclerida) of the deep Atlantic collected during Ifremer cruises, with a biogeographic overview of the Atlantic species

Phylogenetic Reassessment of Antarctic Tetillidae (Demospongiae, Tetractinellida) Reveals New Genera and Genetic Similarity among Morphologically Distinct Species

A monograph of the calcareous sponges (Porifera, Calcarea) of Greenland

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