CLASSIFICATION OF HIPPOSPONGIA​

PHYLUM :- PORIFERA (Pore bearing, cellular grade, asymmetrical or radially symmetrical.)

CLASS :- DEMOSPONGIAE (Spongin fibres or siliceous spicules. Canal system leuconoid type.)

ORDER :- KERATOSA (Skeleton of spongin fibres only.) 

GENUS :- Hippospongia (Commercial horse sponge).

GEOGRAPHICAL DISTRIBUTION

  • Most valuable American sponge. Found in Mediterranean, West Indies and common in Florida.

HABIT AND HABITAT

  • Hippospongia is a marine sponge found 9 to 16 meters

HIPPOSPONGIA

GENERAL CHARACTERSTICS OF HIPPOSPONGIA​

  • Commonly called as horse sponge. 
  • Body massive and permeated by large, often cavernous canals; fibres delicate and forming an irregular network. 
  • Body is covered by a dark and dead membrane provided with numerous flagellated chambers. Body surface is raised at several places bearing oscula. It harbours several small commensal worms and crustaceans. 
  • A single sponge is made up of few to many individuals, provided with few to many oscula. 
  • Skeleton is made up of spongin; siliceous spicules are absent. 
  • Hippospongia has great water-imbibing capacity. 
  • Water enters by prosopyles and leaves by aphodus. Canal system is leuconoid type with aphodal chambers. 
  • Sponge can live up to 50 years, growing massively and extensively.
HIPPOSPONGIA

IDENTIFICATION

  • The animal has oscula, pores, massive cavernous body and all above characters hence it is Hippospongia.

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