Lessios, H.A., B.D. Kessing, and J.S. Pearse. 2001. Population structure and speciation in tropical seas: Global phylogeography of the sea urchin <i> Diadema</i>. Evolution 55(5): 955-975.

Lessios, H.A., B.D. Kessing and D.R. Robertson. 1998. Massive gene flow across the world's most potent marine biogeographic barrier. Proc. R. Soc. Lond. B. 265: 583-588.

P. Gonzalez and H.A. Lessios. 1999b. Molecular evolution of the sea urchin retroviral-like (SURL) family of transposable elements. Molecular Biology and Evolution 16: 938-952

H.A. Lessios, B.D. Kessing, G.M. Wellington and A. Graybeal. 1996a. Indo-Pacific echinoids in the tropical east Pacific. Coral Reefs 15:133-142

H.A. Lessios. 1996b. Methods for quantifying abundance of marine organisms. pp. 149-175 In M.A. Lang and C. C. Baldwin (eds.) Methods and techniques of underwater research. Smithsonian Institution, Washington

H.A. Lessios. 1998c The first stage of speciation as seen in organisms separated by the Isthmus of Panama. pp. 186-201 In D. Howard and S. Berlocher (eds.), Endless forms: Species and speciation. Oxford Univ. Press, Oxford

H.A. Lessios. 1998b. Shallow water echinoids of Cayos Cochinos, Honduras. Rev. Biol. Trop. 46 Supl. (4): 95-101

A. Castillo and H.A. Lessios 2001b. Lobster fishery by the Kuna Indians in the San Blas region of Panama (Kuna Yala) Crustaceana 74: 459-475.

H.A. Lessios. 1979. Use of Panamanian sea urchins to test the molecular clock. Nature, 280:599-601.

H.A. Lessios. 1981b. Divergence in allopatry: Molecular and morphological differentiation between sea urchins separated by the Isthmus of Panama. Evolution, 35: 618-634.