This research was carried out at Naturalis Biodiversity Center and the University of Plymouth with funding from the Leverhulme Trust and the NBC Martin-Fellowship. This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No 746186.

© 2017 Deborah Wall-Palmer

Atlanta ariejansseni Wall-Palmer, Burridge & Peijnenburg, 2016

This species has only been found from the Southern Subtropical Convergence Zone (37-48°S), with a circumglobal distribution.

 

Synonyms:

Atlanta helicinoides (Pilkington, 1970)

Atlanta gaudichaudi (Howard et al., 2011)

 

  • The spire has 3¼ to 3½ whorls, is moderately high and rounded with deep whorl sutures.

  • The spire is ornamented with numerous low projections roughly arranged in 9-12 spiral rows on whorls 2-4. These projections give the spire surface a rough appearance under a light microscope and can clearly be seen using SEM.

  • The adult shell reaches 3.5 mm.

  • The keel is tall with a yellow-brown keel base and has a slightly undulating shape.

  • Soft tissues vary in colour from white, orange-pink and dark grey.

  • Eyes type a, operculum type c, radula type I.

 

Similar species:

 

Further Reading:

Pilkington, M.C. 1970. Young stages and metamorphosis in an atlantid heteropod occurring off south-eastern New Zealand. Proceedings of the Malacological Society of London, 39: 117–124.

 

Wall-Palmer, D., Burridge, A.K., Goetze, E., Stokvis, F., Janssen, A.W., Mekkes, L., Moreno-Alcántara, M., Bednaršek, N., Schiøtte, T., Vinther Sørensen, M., Smart, C.W., Peijnenburg, K.T.C.A. Biogeography and genetic diversity of the atlantid heteropods. Progress in Oceanography, in press. doi: 10.1016/j.pocean.2017.11.004

Wall-Palmer, D., Metcalfe, B., Leng, M.J., Sloane, H.J., Ganssen, G., Vinayachandran, P.N., Smart, C.W. Vertical distribution and diurnal migration of atlantid heteropods. Marine Ecology Progress Series, 587: 1–15. doi: 10.3354/meps12464.

 

Wall-Palmer, D., Burridge, A.K., Peijnenburg, K.T.C.A. 2016. Atlanta ariejansseni, a new species of shelled heteropod from the Southern Subtropical Convergence Zone (Gastropoda, Pterotracheoidea). Zookeys, 604: 13-30.