HALIOTIS

CLASSIFICATION OF HALIOTIS

PHYLUM :- MOLLUSCA (Unsegmented bilaterally symmetrical and provided with visceral mass, foot and mantle. )

CLASS :- GASTROPODA (Visceral hump twisted.)

SUB-CLASS :- PROSOBRANCHIATA (Gills in front of heart.)

ORDER :-  ASPIDOHRANCHIATA (Gills bipectinate.)

SUB-ORDER :- RHIPIDOGLOSSA (Ctenidia and auricles paired.)

GENUS :- Haliotis

GEOGRAPHICAL DISTRIBUTION

  • Commonly found in China, Japan, U.S.A. Pacific coasts and Europe.

HABIT AND HABITAT

  • Haliotis is a marine prosobranchiate inhabiting below low-tide level attached to rocks and boulders and feeding upon seaweeds and other dead organic matter

HALIOTIS

GENERAL CHARACTERSTICS OF HALIOTIS

  •  Commonly called as abalone.
  • Shell is flattened ear-shaped and perforated with a series of holes tentacular processes emerge. Shell also contains several foramina through which respiratory water current passes.
  • Large foot is provided with epipodia containing numerous sensory tentacles. 
  • Operculum is absent. Eyes are stalked. 
  • Spacious mantle contains a pair of gills. 
  • Anteriorly siphon contains a pair of tentacles on each side.
HALIOTIS

ECONOMIC IMPORTANCE

  • The colourful pearly iridescent beautiful shells when polished are much sought after in Europe and U.S.A. for the extensive manufacture of buttons, jewellery, souvenirs and buckles. The flesh is considered a delicacy in China, Japan and Europe.

IDENTIFICATION

  • The animal contains sensory tentacles and all above features, hence it is Haliotis.

HALIOTIS
HALIOTIS
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