Case Report of Flipper Anatomic Anomaly of Sotalia guianensis From Sepetiba Bay, Rio de Janeiro
Article first published online: 30 APR 2013
Copyright © 2013 Wiley Periodicals, Inc.
The Anatomical Record
Volume 296, Issue 7, pages 1016–1018, July 2013
How to Cite
Marigo, J., Pinto, N. S., Simões-Lopes, P. C., Leonardo, F., Azevedo, A. F. and Lailson-Brito, J. (2013), Case Report of Flipper Anatomic Anomaly of Sotalia guianensis From Sepetiba Bay, Rio de Janeiro. Anat Rec, 296: 1016–1018. doi: 10.1002/ar.22706
- Issue published online: 14 JUN 2013
- Article first published online: 30 APR 2013
- Manuscript Accepted: 26 MAR 2013
- Manuscript Received: 26 SEP 2012
- dolphin flipper;
- congenital defect
The cetacean flipper consists of a soft tissue that encases most of the forelimb containing humerus, radius, ulna, carpals, metacarpals, and phalanges. Several studies have documented the typical cetacean's flipper anatomy, but only a few described digital anomalies and the most common are fusions and supernumerary such as polydactily and polyphalangy. The flippers of the Guiana dolphin, Sotalia guianensis have a falciform general aspect showing individual differences and marks produced by individual contact in social interactions that mainly occur on the posterior border. Here, we report for the first time a case of flippers with anatomical anomalies of loss of digits and deviation of radius of an adult S. guianensis from Baía de Sepetiba (22°54′–23°04′, 43°36′–44°02′W), Rio de Janeiro, Southeastern Brazil. Anat Rec, 296:1016–1018, 2013. © 2013 Wiley Periodicals, Inc.