Stenhelia (Delavalia) andamanica     (Copepod)
Organism information awaits expert curation
Class: Maxillopoda

Size: Female: 480-510 ┬Ám long.

Body tapers from anterior to posterior end. Rostrum much reduced to a short conical plate bent to the ventral surface. Genital suture strongly chitinized dorsolaterally. Genital field simple, in the form of a transverse ridge with a lateral seta. Anal operculum well developed, with distinct processes at the posterior end. Caudal ramus two and half times longer than wide, tapers distally, with two well developed apical setae. Somatic ornamentation lacks punctation. Small sensilla occur at the posterior edge of cephalothorax and abdominal segments.
Antennule 8-segmented, with distinct annulation and an aesthete on fourth segment. Antenna with distinct coxa and 3-segmented exopod, the second segment being the shortest and the third one being the longest bearing one, one and three setae, respectively. Mandible resembles the other species of the genus. Exopod and endopod of Maxillule fused to the basis with 2-5 setae, respectively. Maxilla with syncoxa bearing 3 endites, basis with a terminal claw and endopod composed of one segment. Maxilliped non-prehensile, basis and endopod bearing 3 setae each, one of the terminal setae being considerably robust and short.
P.1 with coxa bearing a row of spinules at distal corner. Basis with an inner and outer spine and spinules at distal edge. Exopod slightly shorter than endopod and 3-segmented, the first segment being the longest, while the last one bearing 2 outer and 2 terminal setae. P.2-P.4 with both rami 3-segmented. Coxa with a row of spinules at the distal corner. Basis bears an outer seta. P.5 with basendopod bearing one lateral and four terminal setae, while the exopod is a triangular lamina with 4 terminal setae and lateral spinules.

Synonym (s)

Common Name (s)
Economic Importance and Threats

Habitat:  Sandy, Coastal


• Andaman and Nicobar Islands, East Bay INDIA (Record: 20/03/1990) (Depth: 0.05-0.1 mts)

Literature Source(s)
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Rao, GC (1993) Littoral meiofauna of Little Andaman Records of the Zoological Survey of India. Occasional paper no. 155 ZSI, Calcutta 120 pp Available at - NIO, Goa

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