Ears that droop past the chin OR ears that are upright and taller than usual ears.
Upright long ears:
https://waterdogworld.com/character/CSTM-1043
https://waterdogworld.com/character/MYO-1946
https://waterdogworld.com/character/MYO-6002
Long floppy ears:
https://waterdogworld.com/character/SBR-1906
https://waterdogworld.com/character/MYO-7066