''Clathrina angraensis'' is a
species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...
of
calcareous sponge
The calcareous sponges of class Calcarea are members of the animal phylum Porifera, the cellular sponges. They are characterized by spicules made of calcium carbonate in the form of calcite or aragonite. While the spicules in most species hav ...
from Brazil. The species epithet refers to Angra dos Reis, the Portuguese name for the
Botinas Islands.
Description
Massive cormus formed of thin, irregular and tightly anastomosed tubes, particularly in the apical region. The largest specimen collected is 33 x 24 x 8 mm. Water-collecting tubes are present. The skeleton has no special organization, comprising triactines only. Porocytes are easily observed. Triactines are equiangular and equiradiate. Actines are slightly conical, frequently undulated near the tip, and sharp.
References
External links
World Register of Marine Species entry
Clathrina
Fauna of Brazil
Animals described in 2007
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