Porifera

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Po·rif·er·a

(pō-rif'ĕr-ă),
The sponges; a phylum of the Metazoa, comprising a group of sessile, aquatic animals possessing an endoskeleton and many branching canals, lined by flagellated collar cells; communication of the canals with the surface is made through many pores or through larger openings and oscula.
See also: Parazoa.
[L. porus, pore, + fero, to bear]

Porifera

(pŏ-rĭf′ĕ-ră) [NL. porus, opening + ferre, to bear]
The phylum of sea sponges, some of which are toxic to humans.

Porifera

see SPONGE.
References in periodicals archive ?
The poriferans showed slight differences in their carbohydrate contents (P < 0.01), which were close to 5% dw.
heliophila (with 7.95% dw) had the highest lipid concentrations for cnidarians and poriferans respectively.
The poriferans showed a very similar pattern of amino acids, except for proline (higher values in D.
Low concentrations of total protein were recorded in poriferans, which had total protein around 19% dw.
Similarly to the results for total protein, low concentrations of AA-N were recorded in poriferans and a large variation was observed in cnidarians.
Carbonate skeletons in octocorals and siliceous and calcareous spicules in poriferans (Brusca & Brusca, 2003) are examples of inorganic structural components of some marine invertebrates.
The poriferans analyzed also showed remarkable differences in the concentration of carbohydrate.
On the other hand, the lower values of lipid recorded for some species of poriferans and cnidarians is probably related to the presence of great amounts of inorganic substances in their bodies (Brusca & Brusca, 2003; Clarke, 2008), a topic previously discussed by us.
They suggest that Cambrian tropical mudflats favored the adaptive radiation of two deeply different groups: the highly vagile and complex arthropods and the sessile and simpler poriferans. Why arthropods were so obviously replaced as dominant members of the community by polychaetes (with vagile and sessile taxa) deserves attention in the future (see Fauchald 1975).