New records of elasmobranchs (Vertebrata: Elasmobranchii) from the southwestern Gulf of Mexico

We present information about new records of 11 species chondrichthyans in the southern Gulf Mexico, adding specimens and occurrence Mexican waters. The second record Bathytoshia centroura, Mustelus sinusmexicanus, Mobula hypostoma Squalus clarkae for Mexico is presented, as well marine areas Lagoon Alvarado system corresponding to Hexanchus vitulus, Heptranchrias perlo, Scyliorhinus retifer cubensis. In this paper increase number elasmobranchs southwestern region distribution range knowledge chondrichthyofauna Mexico.