First record of dicephalia in a bull shark foetus from the Gulf of Mexico
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First record of dicephalia in a bull shark Carcharhinus leucas (Chondrichthyes: Carcharhinidae) foetus from the Gulf of Mexico, U.S.A.
C. M. Wagner, P. H. Rice, A. P. Pease
ABSTRACT:
The first recorded incidence of dicephalia in a bull shark Carcharhinus leucas is reported from a foetus collected by a fisherman in the Gulf of Mexico near Florida, U.S.A. External examination, Radiography and magnetic resonance imaging revealed a case of monosomic dicephalia where the axial skeleton and internal organs were found to divide into parallel systems anterior to the pectoral girdle resulting in two well-developed heads.
Journal of Fish Biology. Early View Version, doi: 10.1111/jfb.12064
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