Macrosetella gracilis   (Dana,  1847) (Copepod)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Arthropoda
Class: Maxillopoda
Order:Harpacticoida
Family:Miraciidae

Image copyrights: Huys & Bottger-Schnack

Female: A) dorsal B) lateral; Male: C) lateral

Description
Size: Length 0.98-1.62 mm (female), 0.88-1.30 mm (male).

Female: Body is slender, elongate and without paired cuticular lenses. Cephalosome relatively large, about 1/3 of body length (excluding furca), and as wide as the following segment. Prosome and urosome without distinct constrictions between segments. Ventral margin of penultimate segment, and ventral and lateral margins of anal segment with spinules. Anal segment narrow. Furca about 11 times longer than wide, narrowest halfway its length. Setae very long, distinctly longer than total body length. The rostrum is relatively large and elongate.

Male: Body shape is similar to female. Post-genital segments with rows of spinules at the ventral posterior margin.


Synonym (s)
Setella gracilis Brady, 1883
Dwightia gracilis (Dana, 1852)
Setella gracilis Dana, 1852
Macrosetella gracilis (Dana, 1847)
(Senior synonym)

Common Name (s)
Economic Importance and Threats

Ecology
Habitat:  Pelagic, Estuarine, Coastal

Biogeography


• Andhra Pradesh, Off Visakhapatnam Coast (Lat: 17.7) (Long: 83.3) INDIA
• West Bengal, Sundarbans (Lat: 21.5) (Long: 88.17) INDIA
• Tamil Nadu, Chennai Coast INDIA
• Tamil Nadu, Krusadai Island (Lat: 9.23) (Long: 79.22) INDIA
• Kerala, Off Trivandrum Coast INDIA
• Gujarat, Jakhau-Babber Creek INDIA
• Gujarat, Sangi-Kharo Creek INDIA
• Gujarat, Medi-Sinthodi Creek INDIA
• Tamil Nadu, Gulf of Mannar INDIA
• Andhra Pradesh, Vishakhapatnam (Lat: 17.25) (Long: 17.00) INDIA
• Andhra Pradesh, Kakinada (Lat: 17.25) (Long: 17.00) INDIA
• Daman and Diu, Diu INDIA
• Tamil Nadu, Porto Novo INDIA
• Andaman and Nicobar Islands, Andaman Islands INDIA
• Bay of Bengal INDIA
• Maharashtra, Mumbai, Port (Lat: 18.9) (Long: 72.66) INDIA
• Gujarat, Saurashtra Coast (Lat: 20.84) (Long: 68.83) INDIA
• Gujarat, Saurashtra Coast (Lat: 22.50) (Long: 70.33) INDIA
• Arabian Sea INDIA
• Kerala, Off Kochi (Lat: 10) (Long: 68.05) INDIA (Record: 14/11/1983-17/11/1983)
• Kerala, Off Kochi (Lat: 11.5) (Long: 73.11) INDIA (Record: 14/11/1983-17/11/1983)
• Arabian Sea (Lat: 16) (Long: 62) INDIA (Record: 12/09/1991-23/09/1991) (Depth: 200-500 mts)
• Arabian Sea (Lat: 23) (Long: 73) INDIA (Record: 12/09/1991-23/09/1991) (Depth: 200-500 mts)
• Tamil Nadu, Mandapam INDIA (Record: 07/2008-12/2008)
• Andhra Pradesh, Lawsons Bay INDIA
• Tamil Nadu, Point Calimere INDIA
• Lakshadweep, Kalpeni INDIA (Record: 20/04/1985-04/05/1985)
• Lakshadweep, Agatti INDIA (Record: 20/04/1985-04/05/1985)
• West Bengal, South 24 Parganas INDIA

Literature Source(s)
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Page last updated on:2011-10-28

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