How scientists found 'Nemo,' Australia's newest dancing spider The arachnid, formally named after the cartoon clownfish, is the latest in a wave of peacock spider discoveries. ByJustin Meneguzzi Email In a wetland near South Australia’s Mount Gambier, Sheryl Holliday crouched in ankle-deep water, camera lens trained on blooming purple orchids a few feet away. Just as Holliday prepared to hit the shutter, she caught a glimpse of something tiny jumping out of the frame. She didn’t know it on that clear day in November, but she’d just discovered an entirely new species of peacock spider, a group of little-known Australian jumping spiders known for vibrant colors and elaborate mating dances.