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Atlanta brunnea Gray, 1850

As the name suggests, this species is usually an orange-brown or red-brown colour. It is thought to be the most ‘primitive’ species of Atlanta.



Atlante brune

Atlanta fusca Souleyet, 1852

  • The shell spire is tall, triangular conical in shape and heavily ornamented with zig-zag spiral lines.

  • The spire has 3¾ to 4 whorls

  • A prominent spiral ridge runs along the outer edge of the whorls in the spire, but stops at the end of the juvenile shell.

  • There is a single adult whorl that is encircled by a tall, colourless keel. The maximum shell size is ~2 mm.

  • The spire is always brown and the adult whorl is also sometimes brown.

  • The aperture is rounded.


Similar species: 


Further reading and images:


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


Seapy, R.R. 1990. The pelagic family Atlantidae (Gastropoda: Heteropoda) from Hawaiian waters: a faunistic survey. Malacologia, 32: 107–130.


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

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