Zobrazeno 1 - 2
of 2
pro vyhledávání: '"James K. Langhammer"'
Publikováno v:
Environmental Biology of Fishes. 9:3-24
Observations of reproductive features and body measurements were made on wild-caught, freshwater stingrays, Potamotrygon circularis and P. motoro, from the Amazon drainage of western Brazil and southern Colombia. Further observations were made in Det
Publikováno v:
Environmental Biology of Fishes. 23:299-314
The number of venomous caudal spines and their length and position relative to one another were determined in seven species of South American freshwater rays (Potamotrygonidae) and eight marine or euryhaline species of four families from the Caribbea