Reidispongia Lévi F Lévi, 1988

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 : 688-692

publication ID

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

persistent identifier

https://treatment.plazi.org/id/03CE2F2C-7E2D-D971-39CE-FE42FEC0FBE1

treatment provided by

Marcus

scientific name

Reidispongia Lévi F Lévi, 1988
status

 

Genus Reidispongia Lévi F Lévi, 1988 View in CoL

Reidispongia Lévi F Lévi, 1988: 245 View in CoL , figs 11-14.

TYPE SPECIES. — Reidispongia coerulea Lévi F Lévi, 1988 by monotypy.

DEFINITION. — Lamellar or cup-shaped Phymatellidae (Pisera F Lévi 2002f) .

Reidispongia coerulea Lévi F Lévi, 1988 View in CoL ( Figs 4D View FIG ; 20 View FIG ; 34 View FIG )

Reidispongia coerulea Lévi F Lévi, 1988: 245 View in CoL , pl. 2, fig. 2.

HOLOTYPE. — New Caledonian Slope ( MNHN DCL 3538 About MNHN ).

MATERIAL EXAMINED (see Table 1). — Épon ge, 508- 541 m ( QM G318563, QM G318600, QM G318601, QM G318642).

DESCRIPTION

Growth form

Cup-shaped sponges with thin folded walls or contorted lamellae with a smooth surface and a simple base. Cup openings mainly ovoid. This new material is approximately 5 cm high and 8 × 5 cm wide with a 1.5 cm broad base.

Colour

Blue to dark bluish grey in etoh.

Oscules

Not obvious. Canal openings on the surface of t h e c h o a n o s o m a l s k e l e t o n: I s u r f a c e: 1 9 7- 250 µm; II surface: 135-140 µm.

Texture

Hard, but brittle.

Surface ornamentation

Smooth.

Schlacher-Hoenlinger M. A. et al.

Ectosomal skeleton

Smooth dichotriaenes and some long oxeas occur on both surfaces. Microscleres in the ectosome are amphiasters/streptasters with short and massive rays covered by numerous low spines and rounded, blunt tips.

Choanosomal skeleton

The relatively dense choanosomal skeleton consists of smooth branched tetraclone desmas; there is very poor or no terminal articulation resulting in a fragile sponge structure. Microscleres in the choanosome are amphiasters/streptasters which are covered with hook-like spines and have long and slender rays with pointed ends.

Megascleres

Tetraclone desmas: smooth, branched, with poor terminal articulation: 380-420 µm/20-30 µm. Dichotriaenes: 100-190 µm long × 150-300 µm (diameter of cladome).

Oxeas: 500-1000 × 7-8 µm.

Microscleres

Massive amphiasters/streptasters: 9.61-12.8 × 7.46-10.3 µm.

Amphiasters/spirasters with long rays: 19-21.2 × 15.4-16.1 µm.

REMARKS

This new material agrees closely with the holotype in shape and desma geometry. The morphology and size of microscleres is also identical with the type material.

MNHN

Museum National d'Histoire Naturelle

QM

Queensland Museum

Kingdom

Animalia

Phylum

Porifera

Class

Demospongiae

Order

Tetractinellida

Family

Phymatellidae

Loc

Reidispongia Lévi F Lévi, 1988

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

Reidispongia Lévi F Lévi, 1988: 245

LEVI C. 1988: 245
1988
Loc

Reidispongia coerulea Lévi F Lévi, 1988: 245

LEVI C. 1988: 245
1988
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