Only speculation. A few who keep neo's/card's together have seen a baby like that. Whether it is a true hybrid, or just a wild neo, is up for internet debate that will never be settled until dna analysis is done. lol.
20g platy, , 2 x 10g shrimp, 3 x 20g shrimp, 7.5g shrimp and 1 great dane/mastiff puppy.
DNA can be done on molts even, if preserved in alcohol. So if you can get analysis done on your shrimp molt, it would be a HUGE help in for hobbyists in the future! It may even cost you nothing if the researcher is genuinely interested as well.
I believe the crustahunter may be able to do this, and we may even have some contacts here on the forum?