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

Size: Length (female) 1.06 mm

Female: Body slender, about five times as long as broad with the greatest width at the cephalothorax and with a slight taper from anterior to posterior. Thoracic segments not so widely separated. Second thoracic segment fully incorporated into the cephalothorax. Genital somite without the pronounced waist; suture dorso-lateral only. Lateral setae are present in the genital segment. Ovigerous females with single as well as paired ovisac were seen. The number of eggs is 12-16 in each sac of a pair and 22-26 when only a single sac is present. Caudal ramus more conical. The two setae on the inner edge of the armature is in the form of small bulbs. In some specimens the proximal bulb-seta has a long flagellum; the distal one never has this feature.

Somitic ornamentation: The entire body, except for the cephalothorax, is minutely punctate. Naked striae are visible on all segments but are much more difficult to observe on the thorax. The abdominal pattern is mainly of simple circum-segmental striae. Cephalothorax with sensilla on the posterior lateral edge.

Antennule, antenna and mouthparts: The antennule segments are poorly differentiated. The first endopod segment of the mandible is relatively longer and the cutting edge a little more complex.

P.2: Outer seta of basis very long and slender. Inner seta of first endopod segment reaches to halfway along the third segment.

P.3: Inner seta of the last two exopod segments and the first two endopod segments is much more strongly developed.

P.4: Inner seta of the last two exopod segments and the first endopod segment is much longer.

The accessory spines of P.1-P.4 are slender and numerous.

Synonym (s)

Common Name (s)
Economic Importance and Threats

Habitat:  Sandy


• 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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