Nephasoma diaphanes corrugatum N. Cutler and Cutler, 1986

Nephasoma diaphanes corrugatum

Nephasoma diaphanes corrugatum: hooks

Synonymy
Phascolosoma schuttei Augner, 1903

Distinguishing characteristics
Two retractors.
Transparent or translucent body wall.
Irregular, wavy, zigzag longitudinal epidermal ridges on the introvert base and anterior part of the trunk.
Papillae on the posterior end of the trunk darker than surrounding skin.
Small, scattered triangular hooks.
Tentacular crown consists of six to eight short lobes plus two longer dorsal tentacles.

Size
Common trunk length: 5-10 mm
Maximum trunk length: 20-30 mm

Color
Tan to grayish brown, translucent to opaque

Habitat
It inhabits sandy silt, red clay and mud

Feeding
Deposit feeder

Life cycle
Unknown

Distribution
Broad latitudinal range from the Atlantic and Pacific oceans, Mediteranean, Red Sea; 80-5900 m

References

• Cutler EB (1994) The Sipuncula. Their Systematics, Biology, and Evolution. 1-453
• Cutler EB, Cutler NJ (1986) Revision of the genus Nephasoma (Sipuncula:Golfingiidae). Proceedings of the Biological Society of Washington 99:547-573
• Gibbs PE (2001) Sipunculans. Key and Notes for the Identification of British Species, Synopses of the British Fauna (New Series). Crothers J.H.// Hayward P.J.
• Kędra M, Murina GV (2007) The sipunculan fauna of Svalbard. Polar Research 26:37-47
• Kędra M, Shields MA (2010) On the deep-sea Nephasoma species in the Eastern North Atlantic - A taxonomic guide, Marine Biology Research, DOI:10.1080/17451001003660293
• Pancucci-Papadopoulou MA, Murina GV, Zenetos A (1999) The phylum Sipuncula in the Mediteranean Sea. 1-109