1. Long body?
   yes - go to 2
   no - go to 6
2. Anal fin?
   yes - go to 3
   no - go to 4
3. Dotted caudal fin?
   yes => E
   no => A
4. Teeth?
   yes => H
   no - go to 5
5. Dotted caudal fin?
   yes => J
   no => G
6. Dark caudal fin?
   yes => C
   no - go to 7
7. Dotted front dorsal fin?
   yes => I
   no - go to 8
8. Multiple dots on front dorsal fin?
   yes => go to 9
   no => J
9. 4 dots on front dorsal fin?
   yes => D
   no => B

Keys should be unique to a clade
(A and E have anal fin, but so do B, D, F)

Keys should not be repeated
(3 and 5 are repeated)