Order 2. Canal System 4. Classification. Examples: Leucosolenia, Sycon, (Scypha) Grantia. ORDER EARLY to avoid potential postal delays. Arrives boxed for holiday gift-giving ... Research shows that the average kitchen sponge can be 200,000 times dirtier than a toilet seat. Size can vary from … CLASSIFICATION OF PORIFERA Subkingdom PARAZOA. The clean freak in your life will be thanking you over and over again for this bundle of clean! They are simple types of aquatic invertebrates.This phylum contains about 10000 species; among them, most of the species are Marine and some are freshwater (about 100 species). The approximately 5,000 living sponge species are classified in the phylum Porifera, which is composed of three distinct groups, the Hexactinellida (glass sponges), the Demospongia, and the Calcarea (calcareous sponges). Calcarea (L. Calcis- lime): The skeleton is of calcareous spicules. Scottish Anatomist and Zoologist Robert Edmond Grant proposed the name Porifera (L. Porus, pore and ferre, to bear).The representatives of Phylum Porifera are also known as Sponges. They are frequently cushionshaped; however, encrusting, branching, tubular, vase-, and fan-shaped forms are also quite common. Leucosolenia: It is a simplest colonial sponge consisting of number of horizontal and vertical tubes. Structure of Sponges 3. Order 1. (ii) Microscleres are usually wanting; when present, they are in the form of a star. Hadromerina or Astromonaxonellida: Features: (i) Megascleres are mostly tylostyles, i.e., broad end is knobbed. The order Haplosclerida comprises 13 families and hundreds of species. Spongilla is a genus of freshwater sponges in the family Spongillidae found in lakes and slow streams. Commercial Sponge 7. Classification of Sponge: Chiefly on the basis of skeleton, phylum Porifera (Sponge) is divided into three classes. All freshwater sponges belong to this order as the suborder Spongillina. Individuals grow in large lobes with small openings and are formed by a mesh of primary and secondary fibers. Description of Sponges 2. Boring sponge also known as Cliona and it grows into coral and coral rubble by … The examples are Tethya, Cliona (Boring sponge), Poterion (Neptune’s goblet sponge). The other species called janitrix are bright yellow. And that's why we created Skura Style Sponges. There are about 5,000 species of sponge, mostly marine and few freshwater species. It is light grey to black in color. In sea they occur up to a depth of 8,500 m and mostly flourish in warm waters. Class 1. Boring sponge color differs between each species. Spongia officinalis, better known as a variety of bath sponge, is a commercially used sea sponge. (iii) Spongin is absent. Papillae of cliona aprica has olive to dull brown color, while cliona dioryssa forms orange papollae. Sponge, any of the primitive multicellular aquatic animals that constitute the phylum Porifera. Contents: Description of Sponges Structure of Sponges Canal System of the Sponges Histological Elements Constituting the Wall of Sponges Reproduction and Development in … Histological Elements 5. PhylumPORIFERA. ADVERTISEMENTS: In this article we will discuss about:- 1. Reproduction and Development 6. Sponges are characterized by the possession of a … They number approximately 5,000 described species and inhabit all seas, where they occur attached to surfaces from the intertidal zone to depths of 8,500 metres (29,000 feet) or more.