SABELLARIA

CLASSIFICATION OF SABELLARIA

PHYLUM :- ANNELIDA (Metamerically segmented, coelomate and laterally symmetrical. )

CLASS :- POLYCHAETA (Many setae, clitellum absent. )

ORDER :- TUBICOLA (Tubicolous, sedentary and proboscis non-protrusible, without jaws or teeth.)

GENUS :- Sabellaria

GEOGRAPHICAL DISTRIBUTION

  • Found in Europe and U.S.A.

HABIT AND HABITAT

  • Sabellaria is a marine, sedentary polychaete, more or less Y-shaped. The animals live in simple tubes in sand formed by them.

SABELLARIA

GENERAL CHARACTERSTICS OF SABELLARIA​

  • Body is elongated, segmented and cylindrical with a broad and bifurcated anterior end. The rest of. the body tapers posteriorly. 
  • Animal projects through the sandy tube. 
  • Head is constituted by the prostomium and peristomium. The prostomium contains a pair of tentacles.
  • Peristomium fuses with the palps and becomes comparatively larger and branched. 
  • Dorsal cirri are modified as gill filaments. 
  • Each metamere except first and last possesses a pair of appendages or podia. 
  • Sabellaria often occur in large closely set colonies.
SABELLARIA

IDENTIFICATION

  • The animal has bifurcated anterior end and all above characters, hence it is Sabellaria.

SABELLARIA
SABELLARIA
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  1. CAITLIN

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