Cloeosiphon aspergillus   (de Quatrefages,  1865) (Marine Worm)
Organism information awaits expert curation
Class: Phascolosomatidea

Image copyrights: EOL

Size: Max length 4.0 cm TRKL (male); trunk 35-72 mm long

Cylindrical and grayish-white to reddish on color. Introvert always retracted either partly or wholly, arising from the centre of anal shield. Hooks bidentate, each with sharply pointed apical tooth and irregularly branched or unbranched clear area. Anal shield white, round and beset with spirally arranged numerous quadrate or rhomboidal calcareous facets. Papillae densely crowded and largest at both ends of trunk. Longitudinal muscle layer continuous. Retractor muscle single pair, arising from posterior fifth of trunk. Rectum without caecum. Contractile vessel simple and without villi. Fixing muscle single. Nephridia completely attached, dark brown and extending to the posterior end of trunk.

Synonym (s)
Cloeosiphon aspergillum Shipley, 1903
Cloeosiphon aspergillus Cutler, Cutler and Nishikawa, 1984
Cloeosiphon carolinum Ikeda, 1924
(Junior synonym)
Cloeosiphon japonicum Ikeda, 1904
(Junior synonym)
Cloeosiphon javanicum Sluiter, 1886
(Junior synonym)
Cloeosiphon mollis Selenka & Bulow, 1883
(Junior synonym)
Echinosiphon aspergillum (de Quatrefages, 1865)
(Junior synonym)
Loxosiphon aspergillus de Quatrefages, 1865
(Junior synonym)

Common Name (s)
Economic Importance and Threats

Habitat:  Benthic, Reef Associated


• Gujarat, Gulf of Kachchh (Lat: 22.6) (Long: 69.5) INDIA
• Lakshadweep, Kalpeni INDIA (Record: 09/12/1979)
• Lakshadweep, Minicoy INDIA (Record: 13/12/1979, 14/02/1986)
• Lakshadweep, Kavaratti INDIA (Record: 05/01/1980, 06/02/1986)
• Lakshadweep, Amini INDIA (Record: 13/04/1984)

Literature Source(s)
  • Tikadar, BK; Daniel, A and Subbarao, NV (1986) Sea shore animals of Andaman and Nicobar Islands The Director, ZSI, Kolkatta 188 Available at - ZSI, Pune
  • Halder, BP (1991) Sipunculans of the Indian coast Memoirs of the Zoological survey of India ZSI, Calcutta 17(4) p 169 Available at - NCL, Pune
  • Subba Rao, NV and Sastry, DRK (2005) Fauna of Marine National Park, Gulf of Kuchchh (Gujarat) ZSI 79 pp Available at - NCL, Pune
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Haldar, BP (1991) Sipuncula State fauna series 2: Fauna of Lakshadweep ZSI, Calcutta 167-183 Available at - NIO, Goa
  • Sealifebase Available at -
  • Encyclopedia of Life Available at -

Page last updated on:2010-11-26

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