Nudibranchs are our favorite undersea wonder. Essentially undersea slugs, the name of these animals refers to their exposed gills. This is a three inch long Tamja that I shot at the Poor Knights Islands in New Zealand. The gills are the flowery protrusions about midway along the body. The head is at the right, with the two feelers sticking up. It is crawling across a frond of seaweed.