Orchomenella mannarensis   Rabindranath,  1969 (Amphipod)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Arthropoda
Class: Malacostraca
Order:Amphipoda
Family:Lysianassidae

Description
Female: Body not very slender, dorsally beset with a few spinules. Cephalon with a minute rostrum; ocular lobes angular and projecting, rounded in front; eyes placed slightly away from front margin, large and oval, broader below and formed of dark-reddish central and lighter peripheral ocelli. Peraeon segments subequal in length, successively overlapping and moderately deep.
Coxae well developed. Antennae short; flagellum a little shorter than the peduncle, 8-segmented and carrying tufts of olfactory setae, accessory flagellum ½ the length of the main flagellum, 4-segmented, upper lip separated by a notch from the epistome, its rounded border prominently hairy. Mandible rather strong, elongated, incisor process distally expanded and rounded, lacinia mobilis cut into 4 teeth, spine row absent, molar obsolete, palp long, originating near base. Lower lip without inner lobes, outer lobes tall and very strongly hirsute distally, mandibular processes very long and slender. Inner lobe of maxilliped narrow, distally produced into a tooth-like prominence on the inside, outer lobe nearly oval.

Male: Very much like the female except for the 2nd antenna. Segments of the peduncle of antenna 2 short, flagellum long, 53-segmented, segments of the distal half armed with a few spinules on the ventral border.


Synonym (s)

Common Name (s)
Economic Importance and Threats

Ecology
Habitat:  Reef Associated, Coastal

Biogeography


• Tamil Nadu, Mandapam INDIA
• Bay of Bengal INDIA

Literature Source(s)
  • Rabindranath, P (1971) Two new Gammaridean Amphipods (Crustacea) from the Gulf of Mannar, S. India Hydrobiologia Springer Netherlands 37(1) 157-172 Available at - http://dx.doi.org/10.1007/BF00016371
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • Rao, KVS (1972) intertidal amphipods from the indian coasts Proceedings of the Indian National Science Academy 38 190-205 Available at - NIO, Goa

Page last updated on:2010-12-29

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