top of page

Protatlanta sculpta Issell, 1911

This species was long thought to be synonymous of Protatlanta souleyeti. It has only been found in the Atlantic Ocean.



Atlanta sculpta (Issel, 1911)

Protatlanta souleyeti

  • Spire consists of 3 to 3¼ whorls and is ornamented with two spiral lines. A third line is present n the side of the shell.

  • Shell spire and sutures are brown in colour.

  • There is a single, rapidly inflating adult whorl.

  • The keel is not calcareous, but composed of conchiolin. It is tall, extremely transparent and often assumed to be missing. In fossil specimens, the keel is always missing.

  • This species has only been found in the Atlantic Ocean, outside of the oligotrophic gyres.


Similar species: 




Further Reading:


Issel, R., 1911. Molluschi Eteropodi raccolti dal Capitano G. Chierchia durante il viaggio di circumnavigazione della R. Nave Vettor Pisani negli anni 18182-83-84-85. Annuario del Museo Zoologico della R. Università di Napoli, Nuova Serie 3, 1–11.


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.


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, 160:1–25. 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., Janssen, A.W., Kirby, R., Hart, M.B., Smart, C.W., 2016b. Evidence for the validity of Protatlanta sculpta (Gastropoda: Pterotracheoidea). Contributions to Zoology, 85: 423-435.


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.


bottom of page