Axinella manus   Dendy.  1905 (Sponge)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Porifera
Class: Demospongiae
Order:Halichondrida
Family:Axinellidae

Description
Colour: Rather light grey (in spirit)

Sponge erect, stipitate, branched in a somewhat palmate manner, but with the branches coming off at different levels and curving slightly towards one another (so as to suggest a hand holding a ball). Stem cylindrical, slightly expanded below, about 25 rnillimeters long and 9 millimeters in diameter. Branches about as thick as the stem, slightly flattened, short (usually about 30 millimeters long), rather few in number, terminating in abrupt, conical apices. The vents are small openings in the floors of stellately arranged or longitudinal grooves, which give a characteristic appearance to the sponge, and are chiefly placed on the inner surface of the branches, but also occasionally on the outer surface and on the stem. Surface between the vent-bearing grooves granular or minutely conulose. Texture compressible, resilient but tough, with the stem a good deal harder than the branches. Total height of specimen 84 millimeters.
The skeleton is rather loose and irregular, consisting (in the branches) of plumose columns radiating outwards to the surface and with many spicules irregularly scattered between the whole becoming quite confused towards the middle of the branch, but without any special axial condensation.
Spicules: (1) Rather short and fairly stout styli; more or less curved towards the base, which is broadly rounded off; gradually and sharply pointed at the apex; size about 0.295 millimeters by 0.016 millimeters, but often more slender. (2) Oxea; almost symmetrically curved and gradually sharp pointed at each end of about the same dimensions as the styli; abundant.


Synonym (s)

Common Name (s)
Economic Importance and Threats

Ecology

Biogeography


• Tamil Nadu, Gulf of Mannar INDIA

Literature Source(s)
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • Marine Biological Station, Chennai, Tamil Nadu (2003) Checklist of marine fauna of Tamil Nadu Department of Environment, Government of Tamil Nadu Available at - http://tnenvis.nic.in
  • Dendy, A. (1905) Report on the sponges collected by Professor Herdman,at Ceylon, in 1902. Report to the Government of Ceylon on the Pearl Oyster Fisheries of the Gulf of Manaar. 3(Supplement 18). Royal Society: London 57-246, pls I-X Available at - http://www.marinespecies.org/aphia.php?p=taxdetails&id=165489

Page last updated on:2010-06-23

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