1-4 of 4 Books
Biology and Ecology of Venomous Stingrays
Biology and Ecology of Venomous Stingrays
By Ramasamy Santhanam

Freshwater Stingrays (Complete Pet Owner's Manuals)
By Richard Ross M.D.
Notas sobre la familia Potamotrygonidae Garman, 1913
Notas sobre la familia Potamotrygonidae Garman, 1913
By Mariano N. Castex,Ignacio O. Maciel