To which family does Potamotrygon leopoldi belong, sharing traits like a cartilaginous skeleton?
Answer
Potamotrygonidae
The Xingu River Ray, *Potamotrygon leopoldi*, is classified as a member of the Potamotrygonidae family. This family designation is significant because it groups the ray with other freshwater stingrays that share fundamental characteristics, notably possessing a cartilaginous skeleton. This characteristic places them within the same biological class as sharks. Furthermore, members of this family exhibit a flattened body structure specifically adapted for their benthic existence, dwelling and moving along the riverbed.

Related Questions
To which family does Potamotrygon leopoldi belong, sharing traits like a cartilaginous skeleton?How is the pectoral disc shape of the Xingu River Ray generally described?Regarding size metrics of P. leopoldi, which sex consistently grows larger?What is the maximum recorded disc width cited for the Xingu River Ray?What is the characteristic background color of the P. leopoldi dorsum?How do the white spots on adult P. leopoldi often evolve compared to young individuals?In contrast to its complex dorsal display, what is the typical appearance of the ventral surface of P. leopoldi?How does the toxicity of the venom in P. leopoldi change as the ray ages?Approximately how often does the Xingu River Ray periodically shed its venomous sting?What specific term describes the maturation of the jaw structure in P. leopoldi allowing consumption of hard-shelled prey?What specialized sensory organs are the primary tool for P. leopoldi locating meals hidden in the sediment?Compared to Potamotrygon henlei, what is a noted difference in the back coloration of P. leopoldi?