I spent ten minutes or so trying to get this hyperactive salamander to sit still for a photograph. I found it under a rock at the edge of a stream. As soon as it was exposed, it leaped into the water, floated downstream about four or five feet, then lodged itself beneath an underwater rock. I then moved the new cover rock to expose it again, tried to grab it, and watched it flop and wriggle out of my hands and back into the stream. This slapstick adventure was repeated several times before we made a truce: it agreed to sit still on the shore for no more than ten seconds if I agreed to stop bothering it.

The genus Desmognathus, or Dusky Salamanders, contains a large number of species, many of which are very difficult to tell apart. The Black-bellied Salamander is one of the largest Desmognathus, and one of the least likely to sit still for a photograph. You've never seen a salamander squirm until you've seen a Black-bellied Salamander squirm.

This one is starting to regenerate a broken tail. The shape of the tail is one of the ways to tell various Desmognathus apart, but it's often not a very practical technique because the tails are frequently lost or damaged or just rubbed into a smooth generic shape.

This large adult Black-bellied Salamander features a stardust pattern of light speckles.

I was unsuccessfully trying to locate a small frog that I had seen hop into the water when I noticed this mostly-submerged salamander out of the corner of my eye.

I had originally identified this as Desmognathus fuscus but salamander expert Todd Pierson set me straight on iNaturalist.