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Department of Invertebrate Zoology

Paralomis odawarai (Sakai, 1980)

Paralomis odawarai (Sakai, 1980), Sagami Sea, Boso Peninsula, Japan. © T. Komai

bar image of Patricia Cabezas

Patricia CabezasBacon Postdoctoral Fellow

  • Phone: 301-238-1182
  • Fax: 301-238-3361
  • E-mail:

  • Mailing and Courier Delivery Address:
    Smithsonian Institution
    Department of Invertebrate Zoology
    Museum Support Center, MRC 534
    4210 Silver Hill Road
    Suitland, MD 20746

    Responsibilities: Virginia Purdy Bacon Postdoctoral Fellow

    Ph. D. University Autonoma of Madrid, Madrid 2010

    Research Interests:
    My research focuses on improving our understanding of marine decapod biodiversity by assessing species, molecular and morphological diversity, elucidating their taxonomy, estimating their evolutionary relationships (systematics), reviewing their classification, and evaluating the role of morphological characters in its evolutionary history. At my current position I will use the hermit and king crabs as a model system to study the acquisition of the crab-like form (carcinization) in the infraorden Anomura, which remains one of the greatest challenges in crustacean systematics. During the last two decades, this phenomenon has received considerable attention from evolutionary biologists and the relatively easy access to sequence data has resulted in a resurgence of interest on this topic. Unfortunately, most studies have either been based on incomplete and often inadequate data, and consequently the evolutionary pathway and concomitant morphological changes associated with carcinization remain poorly understood. Thus, I will be assembling a comprehensive morphological and molecular phylogeny and using this as an evolutionary framework for testing previous hypothesis about carcinization and identifying the most plausible morphological transitions.

    Selected Publications:
    Cabezas P, Chan TY. 2014. Deep-sea squat lobsters of the genus Paramunida Baba, 1988 (Crustacea: Decapod: Munididae) from the Philippines PANGLAO 2004, PANGLAO 2005 and AURORA 2007 expeditions, with the description of three new species. The Raffles Bulletin of Zoology (accepted).

    Drew B, Gazis R, Cabezas P, Swithers K, Soltis DE, Hibbett DS, Crandall KA, Katz LA. 2013. Missing branches on the Tree of Life. 2013. PLoS Biology 11: e1001636.

    Bracken-Grissom HD, Ettinger M, Cabezas P, Feldmann RM, Schweitzer CE, Ahyong ST, Felder DL, Lemaitre R, Crandall KA. 2013. A comprehensive and integrative approach to reconstruct the evolutionary history of the Anomura (Crustacea: Decapoda). BMC Evolutionary Biology 13: 128.

    Cabezas P, SanmartĂ­n I, Paulay G, Macpherson E, Machordom A. 2012. Deep under the sea: Unraveling the evolutionary history of the deep-sea squat lobster Paramunida (Decapoda, Munididae). Evolution 66: 1878-1896.

    Cabezas P, Alda F, Macpherson E, Machordom. 2012. Genetic characterization of the endangered anchialine squat lobster Munidopsis polymorpha: implications for conservation. ICES Journal of Marine Science 69: 1030-1037.

    Cabezas P, Macpherson E, Machordom A. 2011. Allogalathea (Decapoda: Galatheidae): a monospecific genus of squat lobster?. Zoological Journal of the Linnean Society 162: 245-270.

    Cabezas P, Macpherson E, Machordom A. 2010. Taxonomic revision of the genus Paramunida Baba, 1988 (Decapoda: Galatheidae): a morphological and molecular approach. Zootaxa 2712: 1-60.

    Cabezas P, Bloor P, Acevedo I, Toledo C, Calvo M, Macpherson E, Machordom A. 2009. Development and characterization of microsatellite markers for the endangered anchialine squat lobster Munidopsis polymorpha. Conservation Genetics 10: 673-676.

    Cabezas P, Macpherson E, Machordom A. 2008. A new genus of squat lobster (Decapoda: Anomura) from the South West Pacific and Indian Ocean inferred from morphological and molecular evidence. Journal of Crustacean Biology 28: 68-75.

    Baba K, Macpherson E, Poore GCB, Ahyong ST, Bermudez A, Cabezas P, Lin CW, Nizinski M, Rodrigues C, Schnabel KE. 2008. Catalogue of squat lobsters of the world (Crustacea: Decapoda: Anomura - families Chirostylidae, Galatheidae and Kiwaidae). Zootaxa 1905: 1-220.

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