2024-03-29T01:37:59Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1323052018-07-11T10:03:36Zcom_10261_88com_10261_8col_10261_341
Uriz, María Jesús
Cebrian, Emma
2006
Zootaxa 1209: 61–68 (2006)
1175-5326
http://hdl.handle.net/10261/132305
1175-5334
One specimen of a keratose sponge not ascribable to any known Atlantic genus was collected by
scuba diving from the shallow rocky sublittoral of El Hierro (Canary Islands). The sponge is
irregularly massive and very hard in consistency, with a microconulose and unarmoured surface.
The skeleton is formed by primary fibres cored with abundant foreign debris and a densely
reticulate network of secondary fibres, which are strongly laminated and free of foreign debris. An
irregular tertiary network formed by very thin fibres is also visible in some places. The features of
the skeleton differ from those of any genus known from the Atlantic Ocean but match those of the
genus Petrosaspongia Bergquist described from the Indo-Pacific and represented up to now by the
species P. nigra. The Atlantic species, here described as Petrosaspongia pharmamari n. sp., differs
from P. nigra by its external colour (dark brown instead of black), its consistency (a little more
compressible), the greater width of the primary and secondary fibres, the higher proportion of
primary fibres and the smaller diameter of meshes. The finding of a second species confirms the
validity of the genus Petrosaspongia. This is the first confirmed record of the genus outside the type
locality.
eng
closedAccess
Spongin fibres
Atlantic Ocean
Porifera
Taxonomy
Keratose sponges
Dictyoceratida
Thorectidae
Petrosaspongia
Presence of the Indo–Pacific genus Petrosaspongia Bergquist, 1995 (Porifera: Demospongiae) in the Atlantic with description of a new species (P. pharmamari n. sp.)
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