Anaderma Lévi F Lévi, 1983

Schlacher-Hoenlinger, Monika A., Pisera, Andrzej & Hooper, John N. A., 2005, Deep-sea “ lithistid ” assemblages from the Norfolk Ridge (New Caledonia), with description of seven new species and a new genus (Porifera, Demospongiae), Zoosystema 27 (4), pp. 649-698 : 679-681

publication ID

https://doi.org/ 10.5281/zenodo.5393958

persistent identifier

https://treatment.plazi.org/id/03CE2F2C-7E14-D97A-39FE-FBE2FBD9FD37

treatment provided by

Marcus

scientific name

Anaderma Lévi F Lévi, 1983
status

 

Genus Anaderma Lévi F Lévi, 1983 View in CoL

Anaderma Lévi F Lévi, 1983: 107 View in CoL , figs 1-4.

TYPE SPECIES. — Anaderma rancureli Lévi F Lévi, 1983 by monotypy.

DEFINITION. — Anatriaenes among ectosomal spicules; microscleres include styles and amphiasters (Pisera F Lévi 2002c).

Anaderma rancureli Lévi F Lévi, 1983 View in CoL ( Figs 3E View FIG ; 16 View FIG ; 30 View FIG )

Anaderma rancureli Lévi F Lévi, 1983: 107 View in CoL , pl. 3: 4-5, pl. 13: 2, 3, fig. 3. — Pisera F Lévi 2 002c: 322-324, figs 1-4.

HOLOTYPE. — New Caledonian Slope ( MNHN DCL 2767 About MNHN ).

MATERIAL EXAMINED (see Table 1). — Banc 1, 276- 350 m ( QM G318561, QM G318832); 305-332 m ( QM G318611); 290-378 m ( QM G318722, QM G318725); 328-340 m ( QM G318821). — Jumeau- West, 302-325 m ( QM G318781).

DESCRIPTION

Growth form

Massive conical to subspherical sponges with a simple base and a flattened upper surface with or without a shallow depression at the top. The examined specimens are about 3 to 6 cm high and 3 to 6 cm wide at the top.

Colour

Beige in etoh.

Oscules

Dispersed oscules on the upper surface, 2 mm in diameter.

Texture

Hard.

Surface ornamentation

Velvety.

Ectosomal skeleton

Outer surface of the sponge is covered by 1-3 mm thick layer without desmas which is composed of densely packed radial bunches of long oxeas and anatriaenes, which are deeply rooted in the choanosome. Sparsely distributed dichotriaenes and numerous microscleres occur in the dermal region. Microscleres also occur in great numbers in the subdermal region, which is characterised by large interconnected spaces and rare desmas.

Choanosomal skeleton

Choanosomal skeleton consists of megaclone desmas with long zygomes. The zygoses are rather weak and therefore produce a delicate skeleton. Apart from desmas there are numerous radially oriented, long oxeas.

Megascleres

Megaclone desmas smooth, slender, and poorly branched, with long zygomes and weak zygoses: 1000-1500 µm/70-100 µm.

Oxeas: 2.29 mm × 23.9 µm.

Dichotriaenes: 1.34 mm long × 741 µm (diameter of the cladome).

Anatriaenes: 91-104 µm long × 738-775 µm.

Microscleres

Microxeas (spinose, curved): 141-157 × 6.27-7.24 µm. Streptasters/amphiasters (pointed to blunt): 12.3- 14.4 × 8.36-10.2 µm.

Microstyles (spinose): 105-120 × 10-15 µm.

REMARKS

This new material conforms closely in shape and spicule geometry with material already described from the region.

Family THEONELLIDAE Lendenfeld, 1903 DEFINITION. View in CoL — Polymorphic lithistids with tetraclone choanosomal desmas and phyllo- to discotriaenes as ectosomal spicules; microscleres are spinose microrhabds and/or microxeas, and streptasters and/or pseudospherasters (Pisera F Lévi 2002d).

MNHN

Museum National d'Histoire Naturelle

QM

Queensland Museum

Kingdom

Animalia

Phylum

Porifera

Class

Demospongiae

Order

Tetractinellida

Family

Pleromidae

Loc

Anaderma Lévi F Lévi, 1983

Schlacher-Hoenlinger, Monika A., Pisera, Andrzej & Hooper, John N. A. 2005
2005
Loc

Anaderma Lévi F Lévi, 1983: 107

LEVI C. 1983: 107
1983
Loc

Anaderma rancureli Lévi F Lévi, 1983: 107

LEVI C. 1983: 107
1983
Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF