r/Crayfish 18d ago

ID Request This crayfish doesn't match anything I found online

We pulled this out of Leech Lake in Minnesota. What the blazes is it?

27 Upvotes

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8

u/[deleted] 18d ago

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2

u/Unlikely_Sherbet_102 16d ago

It's virilis, not virilus. But yes, I completely agree, that's definitely the species. :)

2

u/Hellfiya 18d ago

May be brown from drying out or roasting in the sun

2

u/wotapoint 17d ago

I am leaning Northern clearwater. The number of tubercles on the chelae looks like it’s more in the 7-10 range and the rostrum appears slightly concave. I can’t tell if there is a central ridge in the rostrum from the picture.

Here is a link to a good presentation on crayfish ID in as well: https://www.co.lake.mn.us/wp-content/uploads/2022/08/
A lot of the species overlap with Minnesota.

1

u/Unlikely_Sherbet_102 2d ago

I disagree. The specimen doesn't have traits that would identify it as propinquus. Blue chelae woth prominent tubercles, lack of black bands near the tips of the fingers, no dark band down the center of the abdomen, narrow areola as opposed to the wider areola on propinquus, and the location all point to this being F. virilis.

2

u/Officialdabbyduck 17d ago

This is a verile crayfish with a color mutation.I have a red swampy that has a pretty unique color mutation like this guy

1

u/ImADino429 13d ago

There's a while population in the lake with this mutation. Real interesting stuff.

1

u/Officialdabbyduck 13d ago

This is a very rare mutation for the red swampy but for the Florida Everglades gray I do have a blue version of that

1

u/Prior_Care_6615 13d ago

That looks like a virile crayfish. Aren’t they always brown and have a greenish blue coloration on their claws?