Petrosaspongia pharmamari, Uriz, María - Jesús & Cebrian, Emma, 2006

Uriz, María - Jesús & Cebrian, Emma, 2006, Presence of the Indo – Pacific genus Petrosaspongia Bergquist, 1995 (Porifera: Demospongiae) in the Atlantic with description of a new species (P. pharmamari n. sp.), Zootaxa 1209, pp. 61-68 : 64-65

publication ID

https://doi.org/ 10.5281/zenodo.172425

DOI

https://doi.org/10.5281/zenodo.6494291

persistent identifier

https://treatment.plazi.org/id/03BE878E-DE1F-FF86-FEC2-FB9FFA8AF8C4

treatment provided by

Plazi

scientific name

Petrosaspongia pharmamari
status

sp. nov.

Petrosaspongia pharmamari View in CoL n. sp.

Material examined: 1 Specimen, 15 m depth, rocky bottom, El Hierro, Canary Islands. Holotype Nº CEAB.POR. BIO –190, Centre for Advanced Studies of Blanes, CSIC, Spain.

Etymology: The species is dedicated to Pharmamar Company, for leading investigations in the field of new anti­cancer drugs from marine organisms and, particularly, from sponges.

Type locality: El Hierro (Canary Islands, North Atlantic) sublittoral.

Description

External features

Massive, lobulose specimen 6 cm high, 8 cm wide. Consistency very hard, almost incompressible. Ectosome detachable from the choanosome in shreds. Choanosome dense. Surface even, microconulose, unarmoured except at the conules, where the end of the primary fibres arises ( Fig. 2 View FIGURE 2. P A). Oscules inconspicuous. Colour dark brown outside, beige inside.

Skeleton

Densely reticulate. Formed by irregular meshes of 35–660 m in diameter.

Primary fibres: Irregular in thickness (532–975 m), cored with abundant foreign debris ( Fig. 2 View FIGURE 2. P B).

Secondary fibres: Free of foreign debris (45–115 m in diameter) ( Fig. 3 View FIGURE 3 B), strongly laminated ( Fig. 2 View FIGURE 2. P C & 3D). Through SEM, the surface of the secondary fibres appears rippled in a longitudinal direction ( Figs. 2 View FIGURE 2. P C & D). They form fenestrate plates at the zones where they join the primary fibres ( Fig. 4 View FIGURE 4. P A).

Considerable amounts of sand granules and other foreign materials are scattered throughout the choanosome ( Fig. 4 View FIGURE 4. P B).

Tertiary network made of very thin fibres (8–10 m in diameter) is visible only in some places, as in the type species of Petrosaspongia ( Fig. 4 View FIGURE 4. P C).

Distribution: Canary Islands, El Hierro (North Atlantic), rocky sublittoral, 15 m depth.

BIO

University of the Basque Country

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