Acanthochondria zebriae   Ho, Kim & Kumar,  2000 (Copepod)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Arthropoda
Class: Maxillopoda
Order:Poecilostomatoida
Family:Chondracanthidae

Image copyrights: Taylor and Francis

Description
Size: Female 1.69-1.94 µm; male 217 µm long.

Female: Body elongated and cylindrical. Head longer than wide, 403 X 273 µm (not including inflated antennule), with small rounded knob at each anterolateral corner and ventrally protruded oral region. First pediger narrower than head. Second pediger with remaining prosomal somites fused into a long, cylindrical trunk bearing a pair of posterolateral processes. Genital double somite slightly longer than wide, 135 X 123 µm, and abdomen distinctly wider than long, 37 X 65 µm. Caudal ramus a spiniform, pointed process bearing four setae. Egg sac about as long as trunk.
Antennule fleshy and inflated; armature being (from proximal to distal) 1-1-2-2-2-7. Antenna two-segmented; terminal segment sharply curved and covered with minute tubercles on terminal area of basal half before bend. Labrum with smooth, straight posterior margin. Mandible two-segmented; terminal blade with 31 to 33 teeth on convex (inner) side and 28 to 32 teeth on concave (outer) side. Paragnath a small spinulose lobe. Maxillule with two terminal elements. Maxilla two-segmented; first segment robust and unarmed; second segment bearing one small, simple, basal seta, one large seta with hyaline tip and a row of 22 to 29 teeth on terminal process. Maxilliped three-segmented; first segment largest but unarmed, second segment with long spines on greatly protruded inner distal corner, and terminal segment reduced to a small hook situated opposite to tuft of spinules on inner-distal corner of second segment. Both leg 1 and leg 2 nearly unilobate, with inflated, bluntly pointed exopod continuous with protopod and carrying a much reduced endopod tipped with a seta. Terminal region of exopod with six setae on leg 1 and four setae on leg 2.

Male: Body with swollen cephalosome and cylindrical metasome and urosome. Genital somite with usual ventrolateral ridges. Abdomen indistinguishably fused with genital segment. Caudal ramus as in female but naked. Antennule reduced to a simple seta. Antenna with small seta on basal segment and a conical process on basal part of terminal hook. Mandible with fewer teeth on terminal blade, 17 on convex side and ten on concave side. Maxilla with eight or nine teeth on inner side and single one on outside of terminal process. Maxilliped essentially as in female, but terminal claw relatively larger. Leg 1 reduced to a simple spiniform seta. Leg 2 absent.

Parasitic on Zebrias synapturoides (flatfish).


Synonym (s)

Common Name (s)
Economic Importance and Threats

Ecology

Biogeography


• Kerala INDIA (Record: 11/03/1994, 26/12/1994)

Literature Source(s)
  • Ho, JS; Kim, IH and Kumar, AB (2000) Chondracanthid copepods parasitic on flatfishes of Kerala, India Journal Of Natural History Taylor and Francis 34(5) 709-735 Available at - http://dx.doi.org/10.1080/002229300299372
  • 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:2010-06-29

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