Royal Pleco variations. Are these the same?

[Humuhumu85]

So I have two royal plecos. They are still small. One has intensified his stripes (left) and the other had become more blended (right). Are there different versions of royal plecos? I am curious about these two. Thank you in advance for your replies.

 

[mrtoofay]

Left one is most likely L190, right one should be L191.

 

[David R]

As above, L190 is a names species (Panaque nigrolineatus) and L191 is an as-yet undescribed species, both commonly called "royal pleco", alond with several others from the same group. Both look very nice.

 

[Jkempel]

As above, L190 is a names species (Panaque nigrolineatus) and L191 is an as-yet undescribed species, both commonly called "royal pleco", alond with several others from the same group. Both look very nice.

Agree , but I think the L-191 is also known as the dull eyed panaque.

I also got both of them

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[hamster]

I have one. It looks like the one on the left so l190 I guess. I've had mine for about 2-3 years he was about 1/3" now he's around 3". Great fish I just wish I could see him more. How long have you had yours?

 

[Rotaryp04s]

My l191 is the most active out of all my plecos, away out and scavenging for food. L191 loose all their stripes and become a nice solid green when adult. I notice L190 & l191 both have the same teeth pattern. Nice royals you have there by the way.