How to Distinguish longis vs cancris

Saurianne
Larva
Joined: January 25th, 2017, 6:11 pm

February 16th, 2017, 10:30 pm #1

Hey everyone

So I've been raising some Triops (they're 3-4 days old now), and all is going well so far, but here's the thing.

They're Toyops's "giant Triops," which I'm told are T. cancriformis. And this is what I'm hoping they are! But I've heard Toyops has put the wrong eggs in their Trioptica packages before, so I'm wondering what are some distinguishing characteristics I can use to figure out if these guys are cancriformis or longicaudatis? I've gathered from looking around that cancris tend to be spotted; when does this pattern show up/become easily apparent?

I've raised longis before but don't have any on hand to compare to at present.

I have no idea how to post pictures on here but the Triops I have look whitish at the moment, but again they're only a few days old.

I'm not going to get rid of them or anything if they are longis, but I have them on display at the museum I run and I want to make sure they're properly labelled.

Thanks in advance.
Quote
Like
Share

lucidtal
Triops Longicaudatus
lucidtal
Triops Longicaudatus
Joined: August 3rd, 2015, 5:58 pm

February 22nd, 2017, 3:40 pm #2

Hey, I think you got it exactly right, when they get a bit older if they start to show spots, you can probably just label them T. cancriformis, otherwise you would be safe to label them T. longs.
Quote
Like
Share

Ducky
Triops Cancriformis
Ducky
Triops Cancriformis
Joined: December 6th, 2010, 12:02 pm

December 31st, 2017, 12:17 am #3

You can't go by colour or mottling to determine species, I've had mottled longs, newbs, and cancs.

Longs look like teardrops from above and have cute eyes. They are quite streamlined. Newbs look like ping pong paddles, and have mean looking squinty eyes, the tips of the carapace are generally farther away from each other. cancs are more egg shaped from above, have the shortest tails, and have a lumpier side view to them, I find their eyes harder to see generally but they have kind of a cross eyed look to them.

In my current Sig

Longicaudatus, Newberryi, Granarius male (Japanese), Longicudatus male (females were silvery green), Cancriformis, Newberryi (although i still wonder, looks more like a long to me), Albino cancriformis

Sorry no eyes on the cancs, they are upside down. But it should help with the general shape identification.
Last edited by Ducky on January 5th, 2018, 2:11 am, edited 3 times in total.
Do you have Triops that are different than those shown? Please show me!



Quote
Like
Share