pitxona fu'ivla

x1 is a python of species x2

See also since, virperi.

In notes:

nalvidysince
x1 is a non-venomous snake of species/breed x2
rebdesysince
x1 is a rattlesnake of species/breed x2.
virperi
x1 is a viper (family Viperidae) of species/breed x2.