@article{abessa_rachid_sousa_2001, title={Preliminary results in the sexual dimorphism determination of the sea urchin Lytechinus variegatus variegatus (Lamarck, 1816), Echinoidea, Toxopneustidae}, volume={49}, ISSN={1413-7739}, url={https://doi.org/10.1590/S1413-77392001000100011}, DOI={10.1590/S1413-77392001000100011}, number={1-2}, journal={Revista Brasileira de Oceanografia}, publisher={Instituto Oceanográfico da Universidade de São Paulo}, author={Abessa, Denis M. S. and Rachid, Bauer R. F. and Sousa, Eduinetty Ceci Pereira M.}, year={2001}, pages={133–135} }