Acasta pectinipes   Pilsbry,  1912 (Barnacle)
Organism information awaits expert curation
Class: Maxillopoda

Image copyrights: Ocean Science and Technology Cell, CUSAT, Kochi

Size (mm): Height: Carinorostral diameter-I: 11.5, 7.5; II: 11.5, 6; III: 11, 8; IV: 10, 9; V: 10, 6; VI: 9.5, 8.

Color: White, with the apex dark bluish green owing to the algae growing on the surface.

Shell variable in shape, generally deep cup like. Parietes smooth, strongly ribbed internally; the apices obtuse, curved inwards towards the orifice. Carino-lateral parietes narrow, about one fifth as wide as lateral parietes. Orifice very small. Basis smooth internally with the edge finely crenated. Scutum broad, without longitudinal striae, with short but strongly developed articular ridge; the basal margin nearly as long as the occludent margin. Tergum triangular, very small, with prominent short articular furrow; the surface sculptured with longititudinal striae; spur short, but broadly pointed.
Cirrus IV with three to five nail-like teeth on the lower segments of the anterior ramus; upper segment of its pedicel with many (about 16) teeth. Labrum without teeth.

Synonym (s)
Acasta pectinipes Pilsbry 1912
Acasta nitida Hoek 1913
Acasta pectinipes Broch 1922
Acasta pectinipes Barnard 1924
Acasta pectinipes Nilsson-Cantell 1938a
Acasta komaii Hiro 1931
Acasta pectinipes Hiro 1937

Common Name (s)
Economic Importance and Threats



• Andaman and Nicobar Islands, Port Blair INDIA (Record: 2006)
• Tamil Nadu, Tuticorin INDIA (Record: 25/12/2001)

Literature Source(s)
  • Fernando, SA (2006) Monograph on Indian Barnacles Ocean science and technology Cell, Kochi 9-199 Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -

Page last updated on:2012-05-22

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