Offshore and coastal common bottlenose dolphins of the western South Atlantic face-to-face: What the skull and the spine can tell us

[1 ]Department of Biology; University of Louisiana at Lafayette; 410 E. St. Mary Boulevard Lafayette Louisiana 70503 U.S.A

[2 ]National Marine Fisheries Service; 646 Cajundome Boulevard Lafayette Louisiana 70506 U.S.A

[3 ]Laboratório de Mamíferos Aquáticos (LAMAQ); Departamento de Ecologia e Zoologia; Universidade Federal de Santa Catarina; PO Box 5102 Florianópolis SC 88040-970 Brazil