Hexactinellida or Triaxonida or Hyalospongiae—(Glass Sponge) 3. The "E.T.
By reduction, branching, and ornamentation of rays, glass sponges produce a staggering array of different spicule types that can be aesthetically highly appealing and form the basis to distinguish species and higher taxa. The basic spicule form is the hexactin, which has all six rays (two per axis) fully developed – hence the taxonomic name, Hexactinellida. The spicules, which often form a latticework, have six points or some multiple thereof. CHARLOTTE, N.C. - A marine creature that resembles the alien E.T. The phylum Porifera, which means "pore bearing," consists of three classes of sponges, which together contain more than 5,000 species. The spicules, which often form a latticework, have six points or some multiple thereof. 688 Sample size
Glass sponges occur What is the common name for Hexactinellida? Description, classification, synonyms of Class Hexactinellida - Glass sponges. Calcarea or Calcispongiae— (Calcareous Sponges): [Calcarea, L. Calcarious = limy, Calcispongiae, L. Calcis = … What class is Euplectella in, and what is the common name of Euplectella? has been found growing in a prehistoric area of eastern Pacific seafloor rock. While these sponges share many common characteristics, each class has distinctive traits that set it apart from the others. The body wall has a cavernous structure, with living tissue stretching across a framework around the cavities like a membrane. Read about Hexactinellida on the Animal Diversity Web. Calcarea or Calcispongiae— (Calcareous Sponges) 2. Catalog Number: YPM IZ 000573.PR: Department: Invertebrate Zoology: Scientific Name: Hexactinellida: Taxonomy: Animalia; Porifera; Hexactinellida: Common Name: The three classes are: 1. Schematic drawing of Trichimella type of development Hexactinellida - ru.svg 1,000 × 941; 448 KB The chain of life in geological time BHL26658485.jpg 2,090 × 3,205; 1.04 MB The royal natural history (1893) (14779367944).jpg 2,176 × 3,192; 1.28 MB Glass sponge, any of a class (Hexactinellida, also called Hyalospongiae, or Triaxonia) of sponges characterized by a skeleton that consists of silica spicules (needlelike structures) often united into a delicate geometric network—e.g., that of Venus’s flower basket (q.v.). Porifera: Class Hexactinellida (Glass Sponges) These are deep-sea sponges. They lack an epidermal covering, and their skeletons are composed of spicules of silica.
Disclaimer: ITIS taxonomy is based on the latest scientific consensus available, and is provided as a general reference source for interested parties. Glass sponges occur (a) Clathrina clathrus belongs to class Calcarea, (b) Staurocalyptus spp. They lack an epidermal covering, and their skeletons are composed of spicules of silica. Porifera: Class Hexactinellida (Glass Sponges) These are deep-sea sponges. Glass sponge, any of a class (Hexactinellida, also called Hyalospongiae, or Triaxonia) of sponges characterized by a skeleton that consists of silica spicules (needlelike structures) often united into a delicate geometric network—e.g., that of Venus’s flower basket (q.v.). Glass sponges are pale in color and are cup- … Schulze, 1887 Definition: Skeleton is composed of six-rayed siliceous spicules (triaxone s or hexacts), ooccurring individually or fused together, usually forming rigid lattice-like skeletons. Class: Hexactinellida Order: Lyssacinosida Family: Rossellidae Genus: Scolymastra Species Scolymastra joubini Common name Hexactinellid sponge Lifespan, ageing, and relevant traits Maximum longevity 15,000 years (wild) Source ref. ADVERTISEMENTS: The following points highlight the three main classes of Phylum Porifera. The basic spicule form is the hexactin, which has all six rays (two per axis) fully developed – hence the taxonomic name, Hexactinellida. Phylum Porifera: Class # 1. Disclaimer: The Animal Diversity Web is an educational resource written largely by and for college students.ADW doesn't cover all species in the world, nor does it include all the latest scientific information about organisms we describe.