Department of Zoology at ANDC/Zoology Museum/Museum specimens/Cnidaria/Sertularia

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Sertularia

Date & Time : 25, November 2017 03:39

SCIENTIFIC NAME-Sertularia

GEOGRAPHICAL DISTRIBUTION-Cosmoplitan

HABITAT-Marine hydroid found attached to the rocks and stones.

IDENTIFYING FEATURES-

  • The colony consists of HYDRORHIZA which gives rise to vertical stems.
  • Vertical stems bears hydrotheca that arise from internodes in pair and lies opposite to each other.
  • The mouth of each hydrotheca is covered by a pair of operculum.

COMMON CHARACTERS-

  • The gonangia are sessile ,oval and larger than hydrotheca and also bears blastostyles.
  • Blastostyles are reproductive zooids which come out from the mouth of gonangia.