Oxynaspis indica   Annandale,  1914 (Barnacle)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Arthropoda
Class: Maxillopoda
Order:Pedunculata
Family:Oxynaspididae

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

Description
Plates nearly approximate and covered by horny bark, with a dark brown epicuticle forming low, spine-like tubercles presumably belonging to the antipatharian host. Scutum white with the occludent margin twice or nearly twice the height of occludent margin of tergum; with slight ornamentation in the form of ridges running from and perpendicular to the tergal margin. Tergum broadly triangular, basal angle broadly rounded. The tergolateral margin of the scuta and the scutal margin of the terga are strongly serrated. Carina deeply grooved and rectangularly bent at umbo; the basal part about half as long as the ventral one with the part above the umbo tinted brown. Peduncle is at times as long as the capitulum and covered with stout cuticle and mostly overgrown with the coenenchyme of the host exhibiting the spine like tubercles overall.
Mouth Parts: (i) Labrum: very prominent, crest covered with setae and without teeth.
(ii)Mandible: with four teeth with the serrated lower angle.
(iii)Maxilla: First maxilla has a wide notch occupying about half of the cutting edge from large setae at the upper angle. The notch separating a distinct upper and lower cutting edge. Second maxilla rounded without notch, clothed with plumose setae.
Cirri: First cirrus with unequal rami, with the anterior ramus shorter and thicker than the posterior ramus. Segments of rami of cirrus II appear squarish in lateral view and bear medial setae. Segments of cirri III and IV become more elongate posteriorly, so that with only slightly more segments rami of cirrus VI are longer than those of cirrus III. Segments of cirri III-VI bear usually 5 and rarely 4 or 6 pairs of setae on anterior edge, with a single, minute seta between the bases of major pairs. A few slender setae cluster at posterior angle. Anterior faces of pedicels of cirri II-VI protruberant and spinose. Caudal appendages not observed.


Synonym (s)
Oxynapsis celata indica Annandale 1909
Oxynapsis celata Darwin 1851
Oxynapsis celata Broch 1922
Oxynapsis indica Totton 1940

Common Name (s)
Economic Importance and Threats

Ecology

Biogeography


• Tamil Nadu, Cuddalore INDIA (Record: 1999, 2002)
• Pondicherry INDIA (Record: 2002)

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

Page last updated on:2012-05-21

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