Siphonodentalium colubridens (R. B. Watson 1879)

Siphonodentalium colubridens is a tusk shell or scaphopod in the family Gadilidae of the order Dentaliida. ^[1]

This species was described from only one specimen collected in 1874 by the H.M.S. Challenger expedition.^[2] The original description and a drawing was published in 1879 by Robert Boog Watson, a Scottish malacologist who reported on the Scaphopoda and Gastropoda of the Challenger expedition. The specimen was collected at a depth of about 1300 m in ocean waters east of North Island, New Zealand.

The species is described as having a smooth, white shell, with a swelling below the anterior aperture and a length of 15 mm.^[2][3]

References

• Scarabino, V. (2008). New species and new records of scaphopods from New Caledonia. in: Héros, V. et al. (Ed.) Tropical Deep-Sea Benthos 25. Mémoires du Muséum national d'Histoire naturelle (1993). 196: 215-268
• Spencer, H.G., Marshall, B.A. & Willan, R.C. (2009). Checklist of New Zealand living Mollusca. Pp 196-219. in: Gordon, D.P. (ed.) New Zealand inventory of biodiversity. Volume one. Kingdom Animalia: Radiata, Lophotrochozoa, Deuterostomia. Canterbury University Press, Christchurch.