Lithobubaris Vacelet, 1969

Van Soest, Rob W. M. & Hajdu, Eduardo, 2000, New species of Desmanthus (Porifera, Demospongiae) with a discussion of its ordinal relationships, Zoosystema 22 (2), pp. 299-312 : 308-310

publication ID

https://doi.org/10.5281/zenodo.5401987

DOI

https://doi.org/10.5281/zenodo.5477122

persistent identifier

https://treatment.plazi.org/id/03F287BD-FFF0-E025-80EE-FA98A77DFC46

treatment provided by

Marcus

scientific name

Lithobubaris Vacelet, 1969
status

 

Genus Lithobubaris Vacelet, 1969

DIAGNOSIS. — Desmanthidae (?) with large, stout styles (over 1000 µm long) and interlocked basal mass of desmas. Desmas monocrepid with special styleencircling branches.

Lithobubaris tenens Vacelet, 1969 ( Fig. 3A View FIG )

MATERIAL EXAMINED. — Holotype, Cassidaigne, 250 m ( MNHN DJV 7 View Materials ).

DISTRIBUTION. — Western Mediterranean, encrusting corals at 250 m.

DESCRIPTION

Thin, small, circular crusts of 1-2 cm diameter, whitish in alcohol. Protruding styles make the surface look hairy.

Skeleton

A basal crust of monocrepid desmas of 300 µm thickness, difficult to separate from the substrate. Styles long and robust, their heads encircled by the branches of the desmas (arrows in Fig. 3A View FIG ).

Spicules

Apparently monocrepid desmas with outgrowths proliferated to form circular holes, smooth but provided with tubercles and swellings, dimensions: 200-300 µm in diameter with branches 15- 35 µm in thickness. Styles: long straight or curved at the blunt end, robust, dimensions: 1250-3000 × 45-60 µm.

REMARKS

The species was recorded also from the Caribbean (Van Soest & Stentoft 1988), but spicule sizes in this specimen differ so much that conspecificity is now judged to be unlikely. Accordingly, this material is described as a new species below.

MNHN

Museum National d'Histoire Naturelle

Kingdom

Animalia

Phylum

Porifera

Class

Demospongiae

Order

Bubarida

Family

Desmanthidae