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.
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 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.