Scottolana oleosa   Wells & Rao,  1987 (Copepod)
Organism information awaits expert curation
Class: Maxillopoda

Size: length (female) 0.89 mm; male 0.75 mm

Female: Body slender, almost vermiform, about six times as long as broad. Second thoracic segment (i. e. the segment bearing the P. 1) not completely fused with the cephalothorax . Thoracic segments clearly separated from each other. Rostrum very large, contains an area filled with orange-brown oil droplets which makes it impossible to see much of the internal details of the genital apparatus. Genital field externally rather simple, with a pair of short setae laterally. Ovigerous females possessed only a single ovisac, with eight or nine eggs. Caudal ramus elongate and without a pronounced basal unguliform process.

Somitic ornamentation: Except for the cephalothorax and second thoracic segment the entire body is minutely punctate. Naked striae can be seen on the abdomen only and then only with difficulty. Cephalothorax without sensilla. Abdominal hyaline frill plain.

Antennule: Short, of four or possibly five segmentswith indistinct articulation between the segments.

Antenna: Segment seven and eight of endopod are fused together.
P.1-P.4: P.1-P.3 less heavily chitinized and the accessory spinules much more slender. They are also more numerous; far more are present than can be illustrated with clarity, with up to five overlapping rows of spinules in some cases. The form of the outer spines is also more delicate. Apophysis of the first endopod segment of P.2 is very long. Exopod of P.4 relatively much longer and larger. The inner setae of P.3-P.4 are very reduced.P.5 reduced to four short setae borne ona minute lappet fused to the segment edge.

Male: First two abdominal segment distinct.

Antennule: Chirocerate, last segment unguiform

Synonym (s)

Common Name (s)
Economic Importance and Threats



• Andaman and Nicobar Islands, Middle Andaman, West Point (Lat: 12.38) (Long: 92.94) INDIA (Record: 18/03/1974) (Depth: 0.2 mts)

Literature Source(s)
  • Wells, JBJ and Rao, GC (1987) Littoral Harpacticoida (Crustacea: Copepoda) from Andaman and Nicobar Islands Memoirs of the Zoological Survey of India ZSI 16(4) 1-385; figs 1-1 Available at - NCL, Pune
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -

Page last updated on:2010-07-19

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