Reticulated

Reticulated: Webbed or networked, derived from the Latin for small net. The verb form metaphorically refers to a net or web as in PG&E reticulated electricity across California with their vast distribution network. The most common use of reticulated is in zoology: reticulated giraffe and reticulated python. In both case, reticulated refers to the web-like pattern on the animal's skin.

There were flatbeds with a spindly steel awning providing protection against the elements. ... It reminded him of a snake poking its head out of a cave. A great, rusty reticulated [?] snake.