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Smithsonian National Museum of Natural History

Department of Invertebrate Zoology

Photo of the slit shell, Perotrochus pyramus, Bayer, 1965, off Basse Terre, Guadeloupe, in 435 m. Photo by M.G. Harasewych

Perotrochus pyramus Bayer, 1965, off Basse Terre, Guadeloupe, in 435 m. Photo by M.G. Harasewych.

bar Photo of Jerry Harasewych

M.G. (Jerry) HarasewychResearch Zoologist

  • Phone: 202-633-1745
  • Fax: 202-633-0182
  • E-mail:

  • Mailing Address:
    Smithsonian Institution
    PO Box 37012, MRC 163
    Washington, DC 20013-7012

  • Courier Delivery Address:
    Smithsonian Institution
    National Museum of Natural History
    10th and Constitution Ave, NW
    Washington, DC 20560-0163

    Responsibilities: Research Zoologist, Curator of Marine Mollusca


    Ph.D. 1982: University of Delaware, College of Marine Studies.
    M.S. 1978: University of Delaware, College of Marine Studies.
    B.S. 1972: Drexel University, Philadelphia, PA

    Research Interests:

  • Phylogeny, Biogeography, and Molecular Evolution of Gastropoda, with special interest in Pleurotomariidae, Cocculiniformia, Neogastropoda and land snails of the family Cerionidae.
  • Origin, Evolution, and Biogeography of Deep-Sea Molluscan Faunas.
  • Application of forensic techniques to resolve questions of organismal to evolutionary history within Mollusca.

  • Professional Activities:

    Research Professor, Department of Earth and Environmental Sciences, George Washington University, Washington, D.C. Adjunct Professor, Department of Biology, American University, Washington, DC

    Adjunct Professor, Department of Geosciences, Florida Atlantic University, Boca Raton, Florida

    Fellow, American Association for the Advancement of Science.

  • Editor Emeritus, The Nautilus.

    Recent Publications:
    Harasewych, M. G. 2014. On the Authorship and primary type of Cerion incanum (Gastropoda: Cerionidae). The Nautilus, 128(1): 18-21.

    Harasewych, M. G. 2014. ^Attenuiconus marileeae^, a new species of Cone (Gastropoda: Conidae: Puncticulinae) from Curaçao. Nautilus, 128(2): 55-58.

    Harasewych, M. G. and Petit, Richard E. 2014. Cancellaria (Cancellaria) coltrorum, a new species of Cancellariidae (Gastropoda: Neogastropoda) from Brazil. Proceedings of the Biological Society of Washington, 127(2): 400-405. doi:10.2988/0006-324X-127.2.400

    Harasewych, M. G. 2014. Bartschia (Agassitula) pertae, a new species of colubrariid (Gastropoda: Colubrariidae) from the tropical western Atlantic. The Nautilus, 128(3): 91-96.

    Harasewych, M. G. and Petit, R. E. 2014. Morphology and Systematic Relationships of Brocchinia clenchi Petit, 1986 (Mollusca, Caenogastropoda, Cancellariidae) from the Azores. Açoreana, Supplement 10, 10: 149-165.

    Harasewych, M. G. 2014. Systematics and phylogeography of Cerion sensu stricto (Pulmonata: Cerionidae) from Aruba, Curaçao and Bonaire. Journal of Molluscan Studies, doi:10.1093/mollus/eyu062

    Harasewych, M. G. and Petit, Richard E. 2013. Extractrix dockeryi, a new species from the Eocene of the southeastern United States, with notes on open coiling in the Cancellariidae (Gastropoda: Neogastropoda). The Nautilus: A Quarterly Devoted to Malacology, 127(4): 147-152.

    Petit, Richard E. and Harasewych, M. G. 2013. Rediscovery of Cancellaria corrosa Reeve, 1856 (Gastropoda: Cancellariidae) in the tropical eastern Pacific. Proceedings of the Biological Society of Washington, 126(1): 83-89. doi:10.2988/0006-324X-126.1.83

    Kantor, Yuri I. and Harasewych, M. G. 2013. Antarctica, where turrids and whelks converge: A revision of Falsimohnia Powell, 1951 (Neogastropoda: Buccinoidea) and a description of a new genus. Nautilus, 127(2): 43-56.

    Harasewych, M. G. 2012. The fossil record and phylogeography of the family Cerionidae (Gastropoda: Pulmonata), with the description of a new species from the Pleistocene of Florida. The Nautilus, 126(4): 119-126.

    Petit, Richard E. and Harasewych, M. G. 2011. A new Sveltia (Gastropoda: Cancellariidae) from off Guadeloupe, French West Indies. Nautilus, 125(2): 72-74.

    Harasewych, M. G. and Petit, Richard E. 2011. Two new species of Admetinae (Neogastropoda: Cancellarioidea) from the northeastern Pacific Ocean. The Nautilus, 125(3): 159-163.

    Harasewych, M. G. 2011. The Living Columbariinae (Gastropoda: Neogastropoda: Turbinellidae) of New Zealand. Zootaxa, 2744: 1-33.

    Harasewych, M. G., Sikaroodi, Masoumeh and Gillevet, Patrick M. 2011. The Delray Beach, Florida, colony of Cerion (Paracerion) tridentatum costellata Pilsbry, 1946 (Gastropoda: Pulmonata: Cerionidae): Evidence for indirect Cuban origins. Nautilus, 125(4): 173-181.

    Lieb, Bernhard, Gebauer, Wolfgang, Christos, Gatsogiannism, Depoix, Frank, Hellmann, Nadja, Harasewych, M. G., Strong, Ellen E. and Markl, Jü 2010. Molluscan mega-hemocyanin: an ancient oxygen carrier tuned by a 500 kDa polypeptide. Frontiers in Zoology, 7(14): 1-13.

    Harasewych, M. G. and Pastorino, Guido 2010. Trophonella (Gastropoda: Muricidae), a New Genus from Antarctic Waters, with the Description of a New Species. Veliger, 51(1): 85-103.

    Harasewych, M. G. and Moretzsohn, Fabio 2010. The book of shells: a lifesize guide to identifying and classifying six hundred shells Chicago and London: University of Chicago Press. 656 pages.

    Full Publication List

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