Nearly all captive bred "Axolotls" are hybrids of Ambystoma mexicanum and A. tigrinum. Mine are no exception.

Ambystoma mexicanum x tigrinum DSCN9669
Ambystoma mexicanum x tigrinum DSCN9694
Ambystoma mexicanum x tigrinum DSCN9708
Ambystoma mexicanum x tigrinum A042952
Ambystoma mexicanum x tigrinum A042963
Ambystoma mexicanum x tigrinum B010138
Ambystoma mexicanum x tigrinum B010144
Ambystoma mexicanum x tigrinum A042993
Ambystoma mexicanum x tigrinum DSCN0796
Ambystoma mexicanum x tigrinum DSCN9676
Ambystoma mexicanum x tigrinum DSCN9577
Ambystoma mexicanum x tigrinum 01 day DSCN9738
Ambystoma mexicanum x tigrinum 02 days DSCN9669
Ambystoma mexicanum x tigrinum 02+half days DSCN9684
Ambystoma mexicanum x tigrinum 03+half days DSCN9826
Ambystoma mexicanum x tigrinum 04 days DSCN9845
Ambystoma mexicanum x tigrinum 05+half days DSCN9865
Ambystoma mexicanum x tigrinum 7days DSCN9936
Ambystoma mexicanum x tigrinum 09 days DSCN0022
Ambystoma mexicanum x tigrinum 10 days DSCN0119
Ambystoma mexicanum x tigrinum 12 days DSCN9432
Ambystoma mexicanum x tigrinum 13 days hatching DSCN9505
Ambystoma mexicanum x tigrinum DSCN9945
Ambystoma mexicanum x tigrinum DSCN9980
Ambystoma mexicanum x tigrinum DSCN8907
Ambystoma mexicanum x tigrinum DSCN8880
Ambystoma mexicanum x tigrinum DSCN8887