Julli v.s. Trilineatus

mokofeyz · Post by **mokofeyz** » 15 Nov 2006, 13:56

This question has probably been asked before. How do you distinguish Julii from trilineatus? When I was browsing the net, I see some Julii variants that are very similar to trilineatus. Any comments and opinions are appreciated.

Post by **Silurus** » 15 Nov 2006, 14:00

http://www.planetcatfish.com/forum/view ... hp?t=15254
http://www.planetcatfish.com/forum/view ... hp?t=15521

MatsP · Post by **MatsP** » 15 Nov 2006, 14:34

You can also have a look at and . Particularly the first one has a good description of how to tell them apart.

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Mats

mokofeyz · Post by **mokofeyz** » 15 Nov 2006, 14:50

Thanks for the lightning-quick responses!I guess in general the trilineatus has reticulated patterns on the head area as opposed to small spots in julii, right?

I looked at these pictures and I had no doubt in my mind that these are trilineatus. They were actually labeled as julii, rio purus and rondonia. Could they have misidentified these?

Julii, Purus

Julii, rondonia

kim m · Post by **kim m** » 15 Nov 2006, 15:07

Both are C. trilineatus.

MatsP · Post by **MatsP** » 15 Nov 2006, 15:12

The type location for C. julii is 9Â° 7' 60.00", -45Â° 55' 60.00", which is about one third in from the eastern coast in Brazil.

C. trilineatus is from Peru on the western side of the continent. Exactly: Triub. of RÃo Ambyiacu, Peru.

If the "Rondonia" one is actually from the Rondonia state, it's near the type locaton for C. trilineatus, and many miles from the type location of C. julii.

Likewise, if the one called Purus is actually from Rio Purus in Western Brazil, it would be much closer to the type location for C. trilineatus than C. julii.

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Mats

mokofeyz · Post by **mokofeyz** » 15 Nov 2006, 15:15

Ok, thanks. I will shut my mouth now.

BTW, that is very informative Mats! Thanks again.