Lepas bengalensis   (Daniel),  1952 (Barnacle)
Organism information awaits expert curation
Class: Maxillopoda

Size: Length of capitulum 3 mm; breadth of capitulum 2 mm; length of peduncle 1 mm.
Capitulum strongly flattened laterally, carinal edge of tergum excavated, occludent edge sinuous and slanting outwards with the lower edge straight and opening large. The valves being transparent, the body is flesh colored.
Scutum: Occupying a major portion of the capitulum; with the carinotergal margin broadly arched, the arch being sharper at the junction of the base of the tergum and the carina; basal margin nearly straight; occludent margin uniformly arched and with all the three margins of the scutum well defined.
Tergum: With a concavity at the carinal margin, above the apical tip of the carina; apical angle rounded and the lower angle pointed.
Carina: Forked at the base, the branches of the fork being long and almost parallel to one another.
Peduncle: very short and has two ridges.
Cirri: The number of segments in the anterior and posterior rami of the cirri is as follows : I Cirri-l3,11; II Cirri-12,14; III Cirri-14,14; IV Cirri-17,17; V Cirri -19,19; VI Cirri-20,20.
In the first cirrus the posterior ramus is shorter than the anterior by two joints; the anterior margin of the anterior ramus is almost straight, with a dense fringle of long hairs; the posterior margin of the last six joints bearing a pair of short spines at the distal extremity. The posterior ramus has the penultimate joint and three joints preceding it provided with short spines at the distal extremity of the posterior margin, with the distal joint ending in a crown of long and slender bristles. The second to sixth pairs of cirri are alike. Each segment bears on the anterior margin a single pair of very long spines at the distal end and three pairs of smaller spines of almost equal length. At the distal tip of the posterior margin a pair of short spines is always present. Anal appendage is a very small claw shaped process. The penis is long and slender. On either side of the prosoma three filamentary appendages are borne; of these one is very long and the other two in front of it are of equal size.
Mouth parts: (i) Labrum: bullate
(ii) Maxilla: With the cutting edge provided with 3 depressions forming 4 steps. There is a single very large spine at the upper step followed by 3 or 4 shorter and slender spines. At the protuberance formed by each step a single large spine is followed by 4 shorter spines.
(iii) Mandible: Has 6 teeth including the inner angle, the first tooth is very deeply marked and separated from the rest.

Synonym (s)
Lepas bengalensis Daniel 1952

Common Name (s)
Economic Importance and Threats



• INDIA (Record: 2006)
• Tamil Nadu, Off Chennai INDIA (Record: 1950)
• 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 - http://www.marinespecies.org
  • 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 - http://tnenvis.nic.in/PDF/coastal%20data.pdf

Page last updated on:2012-05-21

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