non-aquatic spiders

There are a few spiders in Australia that frequent aquatic habitats; these are described separately. Even more common are terrestrial spiders that are accidentally collected along with aquatic samples. Those taxa that build their webs near or over water (e.g. Tetragnathidae) are particularly prone to inadvertant collection. If you have a spider from an aquatic sample, you must compare its characters to those of known aquatic taxa to rule out its being purely terrestrial. No aquatic spider has only 6 eyes, so 6-eyed spiders are invariably terrestrial.