Diving bell spider

The diving bell spider, also called the water spider, is the only species of spider known to live almost entirely underwater. It is the sole member of the genus Argyroneta and the type genus of the family Argyronetidae. Out of water the spider ranges from mid to dark brown in color, though the hairs on its abdomen give it a dark grey, velvet-like appearance. It is native to freshwater habitats across Europe and Asia. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/