Acasta sulcata   Lamarck,  1818 (Barnacle)
Organism information awaits expert curation
Class: Maxillopoda

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

Size: Carino rostral diameter 8-12 mm

Color: Shell ivory white but tinged pink at base and along the parietal margins.

Shell plates smooth, with small fine calcarious teeth at irregular rows; spines either pointed horizontally or vertically upwards. Internals of the parietals strongly ribbed. Sheath occupies half height of parietes and not marked with growth lines. Radii wide as alae provided internally with many parallel shelves. Orifice small, dentate, dental points brittle. Rostral plate widest but shortest of all the compartmental plates. Carina is the highest. Dorsally scutum flat, thin, transparent, provided with growth lines. Adductor muscle pit oval and shallow; adductor ridge low and slopes down the lower margin. Articular furrow narrow and shallow; mid basal margin slightly concave. Tergum long, thin and transparent. Spur half as wide as the whole valve and truncated at the end. Longitudinal furrow run towards the spur. Scutal border slightly elevated. Articular ridged low and short; depressed muscle crest absent.

Synonym (s)
Acasta sulcata Lamarck 1818
Acasta sulcata Darwin 1854
Acasta sulcata Weltner 1897
Acasta sulcata Borradaile 1903
Acasta sulcata Gruvel 1905
Acasta sulcata Kruger 1911
Acasta sulcata Hiro 1937a
Acasta sulcata Nilsson-Cantell 1938a

Common Name (s)
Economic Importance and Threats



• Tamil Nadu, Tuticorin INDIA (Record: 25/11/2001)
• MALDIVES (Record: 2006)
• Red Sea (Record: 2006)
• Persian Gulf (Record: 2006)
• Tamil Nadu, Chennai Coast INDIA (Record: 2008)

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 -
  • Dr. Ramesh, R; Dr. Nammalwar, P and Dr. Gowri, VS (2008) Database on coastal information of Tamil Nadu Report Submitted to Environmental Information System (ENVIS) Centre, Department of Environment, Government of Tamil Nadu Institute for Ocean Management, Anna University, Chennai, Tamil Nadu. Available at -

Page last updated on:2012-05-22

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