Balanus patelliformis   Bruguiere,  1789 (Barnacle)
Organism information awaits expert curation
Class: Maxillopoda

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

Color: The shell is light brown in smaller specimens and dirty brown to dull purple in larger specimens bearing longitudinal ribs; in very young specimens the parietes are distinctly banded with regular longitudinal violet stripes and appear as young ones of Balanus amphitrite amphitrite. Radii and alae usually white; sometimes alae colored dull purple; sheath dirty white, sometimes with narrow horizontal purple stripes near the lower margin, opercular valves generally white; occasionally dull brown.

Shell: Except the rostral plate, where the lower margin of sheath is fused medially with the inner surface, the sheath is overhanging. Subsidiary parietal tubes are present in this species and they are very well developed in grown up specimens especially around the base of the longitudinal ridges of the shell. In young individuals the subsidiary tubes are just developing from the base of the longitudinal folds, by the bifurcation of the longitudinal parietal septa, close to the outer lamina.
Opercular valves: Scutum rarely flat; externally concave between apex and basal margin. Basal margin of the tergum is variable in having a deep excavation on the carinal side, close to the spur (Nilsson-Cantell, 1929b) to broad excavation (Utinomi, 1968).
Mouth Parts - Labrum: Usually with five teeth on crest on each side of notch.
Inner maxilla: The notch below the upper pair of larger spines is almost indistinct.

Synonym (s)
Balanus patelliformis Bruguiere 1789
Lepas patellaris Gmelin 1790
Balanus patelliformis Darwin 1854

Common Name (s)
Economic Importance and Threats



• Tamil Nadu, Parangipettai INDIA (Record: 1970, 1973)
• INDIA (Record: 2006)

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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