The female attaches fifteen to forty eggs to the base of submerged boulders.
Shortly before 1 a.m., we eased up to a spot where a small contingent of submerged boulders could be picked out by ripples in the swells.
"This species lives in fast mountain streams and large rivers, over soft substrates and often near submerged boulders and fallen trees."
The tide was high, giving ample clearance over submerged boulders.
There was a dull thud as my right knee bashed a submerged boulder.
It could also be a scar left by a battle against another reptile or by running into a submerged boulder!
Downstream, two spin-fishermen cast metal lures to the far bank while a lone fly-angler worked a nymph behind a submerged boulder.
The two large, often submerged boulders here create two extremely powerful ledge holes.
Mr. Lessels led, bounding around the submerged boulders like a deer through the forest.
Even though he was in open ocean, submerged boulders or other obstacles might lie ahead.