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

Description
Color: Pale wax-yellow (in spirit)

The single specimen is a small massive sponge of short, thick, irregularly cylindrical form, attached by a broad base below and strongly convex on the upper surface, from which a number of slender, elongated, finger-like processes are given off. Surface uneven and irregularly hispid, especially on the digitiform processes; in part minutely and irregularly conulose and in part covered by a distinct, sub-glabrous, translucent dermal membrane. The digitiform processes are solid and they may unite with one another. Vents apparently small and scattered between the processes. Texture hard and compact. Height of body about 20 millimeters diameter about 15 millimeters; length of processes, of which there are about half a dozen, about 11 millimeters., with a diameter of not much more than 1 millimeter. The skeleton in the body of the sponge consists of an irregular reticulation of long styli, which as they approach the surface, arrange themselves in loose, irregular, plumose columns. The digitiform processes are composed each almost entirely of a dense axis of similar spicules closely crowded together and placed longitudinally, with a few spicules projecting outwards beyond the surface, so as to give rise to its hispid character.
Spicules: Apparently all stylote and all long, but varying much in thickness; usually only very slightly curved (towards the base), but sometimes crooked; broadly rounded off at the base, which may be somewhat narrower than the middle part of the spicule, and gradually and sharply pointed at the apex. The stouter forms measure about 1.18 millimeter by 0.0328 millimeter. In the digitiform processes they are a good deal more slender, and slender forms also occur intermingled with the stout ones in the body of the sponge.



Synonym (s)

Common Name (s)
Economic Importance and Threats

Ecology
Habitat:  Reef Associated, Coastal

Biogeography


• Tamil Nadu, Gulf of Mannar INDIA
• Andaman and Nicobar Islands INDIA
• Tamil Nadu, Rameswaram Island INDIA
• Tamil Nadu, Pamban INDIA
• Off Orissa Coast 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
  • Pattanayak, JG (2006) Marine sponges of Andaman and Nicobar Islands Records of the Zoological Survey of India- Occasional Paper No: 255 Zoological Survey of India 164
  • 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
  • James, PSBR ; Thomas, PA ; Pillai, CSG and Achari Kumaraswamy, GP (1969) ´╗┐Catalogue of types and of sponges, corals, polychaetes, crabs and echinoderms in the reference collections of the Central Marine Fisheries Research Institute Bulletin of Central Marine Research Institute CMFRI, Cochin 7 1-66 Available at - http://eprints.cmfri.org.in/567/1/Bulletin_7.pdf
  • Thomas, PA; Sree, A; Bapuji, M; Rao, KM and Murthy, KSR (2002) Biodiversity, zoogeography and affinity of Orissa sponges Proceedings of the National Conference on Utilization of Bioresources - NATCUB-2002 Allied Publishers; New Delhi 351-360 Available at - http://drs.nio.org/drs/handle/2264/1353

Page last updated on:2011-09-30

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