Spadella angulata   Tokioka,  1951 (Marine Worm)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Chaetognatha
Class: Sagittoidea
Order:Phragmophora
Family:Spadellidae

Image copyrights: A. Pierrot-Bults

Description
Size: Maximum adult body length 6 mm; tail 49-58 %.

Body slender and transparent; transversal musculature on trunk; head wide; hooks not serrated. Fin bridge absent; one pair of short lateral fins both on trunk and tail; lateral fins fully rayed, rounded. Collarette long and narrow; gut diverticula absent; no eyes. Seminal vesicles conical; position of seminal vesicles: touching both posterior fins and tail fin. Ovaries short. Ova fairly large. Adhesive papillae present; adhesive organs with adhesive appendages absent; apical glands absent. Hooks: 8-9; anterior teeth: 3-4; posterior teeth: 1.


Synonym (s)

Common Name (s)
Economic Importance and Threats

Ecology
Habitat:  Bentho Pelagic

Biogeography


• INDIA
• Lakshadweep Islands INDIA

Literature Source(s)
  • Alfred, JRB; Das, AK and Sanyal, AK (Eds.) (1998) Faunal diversity in India ZSI, Calcutta 1-497 Available at - NCL, Pune
  • Venkatraman, K; Srinivasan, M; Satyanarayana, CH and Prabhakar D (2002) Faunal diversity of Gulf of Mannar biosphere reserve Conservation area series 15 ZSI 77 pp; VIII pla Available at - NCL, Pune
  • Pierrot-Bults, A (2004) Chaetognatha of the world World biodiversity database Available at - http://nlbif.eti.uva.nl/bis/chaetognatha.php?menuentry=zoeken
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • Sealifebase Available at - http://www.sealifebase.org/
  • Madhupratap, M; Achuthankutty, CT and Nair, SRS (1991) Zooplankton of the lagoons of the Laccadives: diel patterns and emergence Journal of Plankton Research Cambridge University Press 13 947-958 Available at - http://drs.nio.org/drs/handle/2264/3167

Page last updated on:2011-02-08

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