Hey Edk,
I just happened to recently capture, photograph and upload a picture of a Marbled Salamander larva. It should help with your description. This one does not have balancers, but the mouth is obvious...

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*Humans aren't the only species on earth... we just act like it.
".the oldest task in human history: to live on a piece of land without
spoiling it."
Aldo Leopold (1938)
"The rattlesnake may be esteemed an emblem of vigilance. She never begins an attack, or, when once engaged, never surrenders. She is therefore an emblem of magnanimity & true courage. She never wounds until she has generously given notice even to her enemy, and cautioned against the danger of treading upon her."
-- Pennsylvania Journal, December 1775
"In the end we will conserve only what we love;
we will love only what we understand;
and we will understand only what we are taught."
Baba Dioum,
Senegalese ecologist