Some representatives of phylum - Porifera
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Some representatives of phylum - Porifera
Classification of Animals Non Chordates of Class 11
Leucosolenia
Class - Calcarea.
Simplest sponge found attached to the rocks on sea-shore, reaches a height of 1-2.5 cm
Branched colonial sponge having vase - shaped individuals.
Asconoid canal system, larva is parenchymula
Skeleton : Calcareous spicules.
Euplectella (Venus flower basket),
It symbolises that “till death we are together”.
Dried skeleton of this sponge is given as wedding gift in Japan.
Class - Hexactinellida found near Phillipines West Indies
Found in deep sea, attached to substratum with the help of root tuft. Osculum has sieve plates & surface has parietal gaps.
Middle part of the root tuft usually bears epizoic or symbiotic anemones.
It encloses shrimp pair (spongicola genus) which lives here till death.
Fig. Leucosolenia:A colony growing on a rock
Euspongia (Bath sponge, Horny Sponge)
Class : Demospongiae;
Large brownish, spherical to lamelliform structure having leathery surface with numerous small projections or conules.
Commonly found in Mediterranean sea, Gulf of Mexico and Carribean.
Sexes separate. E. mollissma is mediterranean bath sponge. E. officinalis is Turkis bath sponge.
Commerical sponge is dried, cleaned, treated and bleached sponge skeleton used for packing, scrubbing, cleaning and sound proofing.
Chalina (Mermaid’s gloves, Dead man’s finger)
Class - Demospongiae, it resembles a hand with several fingers.
Skeleton of spongin fibres with siliceous spicules.
Common Names
Spheciospongia : Largest sponge
Leucosolenia : Smallest sponge
Scypha : Urn sponge (Crown sponge)
Olynthus : Hypothelical ancestor of sponges
Euplectella : Venus flower basket
Pheronema : Bowl sponge
Hyalonema : Glass - rope sponge
Cliona : Boring sponge (Sulphur sponge), Harmful to pearl industry.Produces sulphuric acid which bores through shell of pearl producing oysters.
Chalina : Mermaid’s gloves (Dead man’s finger)
Spongilla : Fresh water sponge. Green in colour due to presence of symbiotic algae zoochlarella.
Euspongia : Bath sponge
Poterion : Neptune’s goblet
Hippospongia : Horse sponge (Rough bath sponge.)
Hircinia : Horny sponge
Grantia : Purse sponge
