class hyalospongiae

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class hyalospongiae

A marine biologist examines a delicate glass sponge from the class Hyalospongiae.

Definition

Noun: * Class Hyalospongiae: A taxonomic class of marine sponges (phylum Porifera) characterized by having a skeleton composed of siliceous (glass-like) spicules with six rays (hexactinellid). Their choanocytes (flagellated cells that create water currents) are confined to finger-shaped or tubular chambers.

Usage Notes
  • This is a highly specialized scientific term used primarily in marine biology, zoology, and taxonomy.
  • It refers to a formal classification group. In modern taxonomic systems, this group is often referred to as Hexactinellida.
  • The term is typically used in academic writing, research papers, and technical descriptions.
Examples
  • Scientific Description: "Sponges belonging to the class Hyalospongiae are often found in deep-sea environments."
  • Taxonomic Context: "The class Hyalospongiae includes glass sponges, which have a distinctive skeletal structure."
  • Comparative Biology: "Unlike demosponges, members of the class Hyalospongiae possess a rigid skeleton of six-rayed siliceous spicules."
Advanced Usage
  • Phylogenetic Studies: The classification and evolutionary relationships of the class Hyalospongiae are subjects of ongoing scientific research.
  • Paleontology: Fossils attributed to the class Hyalospongiae provide important clues about ancient marine ecosystems.
Variants and Related Words
  • Hexactinellida (n): The modern taxonomic class name that is largely synonymous with Hyalospongiae.
  • Glass sponge (n): The common name for sponges in this class, derived from their siliceous, glass-like skeleton.
  • Hyalosponge (n): An informal term for a sponge belonging to this class.
Synonyms
  • Hexactinellid sponges
  • Glass sponges
Different Meanings
  • This term has only one specific, technical meaning within biological taxonomy. It does not have general or figurative meanings.
class hyalospongiae

A marine biologist examines a delicate glass sponge from the class Hyalospongiae.

Noun
  1. sponges with siliceous spicules that have six rays; choanocytes are restricted to finger-shaped chambers

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