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 rosea Gray, 1850

This species is similar in shape to Atlanta peronii, however, the sutures of the first 2½ whorls are shallow, giving the spire a globular shape.

  • Spire has 3½ whorls. The sutures of the first 2½ whorls are shallow, giving the spire a globuar shape.

  • Juvenile specimens are often bright pink. However, this is true of several Atlanta species, and should be treated with caution as an identifying characteristic.

  • The adult shell is moderately large up to 5 mm.

  • Soft tissues can range in colour from white, to orange-pink, bright pink and brown.

  • Adult shells can become slightly yellow.

  • The keel is of moderate height and inserts between the final and penultimate whorls in large specimens.

  • Eye type b, operculum type b, radula type II.

 

Similar species:

 

 

 

Further Reading:

 

Richter, G., 1993. Zur Kenntnis der Gattung Atlanta, 5. Die Atlanta peroni-Gruppe und Atlanta gaudichaudi (Prosobranchia: Heteropoda). Archiv für Molluskenkunde 122, 189–205.

 

Richter, G., Seapy, R.R., 1999. Heteropoda, in: South Atlantic Zooplankton. Backhuys, Leiden, pp. 621–647.

 

Seapy, R.R. 2011. Atlantidae. In: Tree of life web project. Available at http://tolweb.org/Atlantidae accessed 1 April 2017.

 

Seapy, R.R., Lalli, C.M., Wells, F., 2003. Heteropoda from Western Australian waters., in: The Marine Flora and Fauna of Dampier, Western Australia. Western Australian Museum, Perth, pp. 513–546.

 

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., Smart, C.W., Kirby, R., Hart, M.B., Peijnenburg, K.T.C.A., Janssen, A. 2016. A review of the ecology, palaeontology and distribution of atlantid heteropods (Caenogastropoda: Pterotracheoidea: Atlantidae). Journal of Molluscan Studies, 1-14.