Which characteristic is the most reliable field identifier for the tail of *Crotalus molossus*?

Answer

Uniformly black from the vent to the rattle tip

For *Crotalus molossus*, the tail displays distinct, solid black coloration extending uniformly from the vent down to the rattle.

Which characteristic is the most reliable field identifier for the tail of *Crotalus molossus*?

#Videos

The venomous Black-tailed rattlesnake of Arizona. Crotalus molossus

venomreptiletailsnakeRattlesnake