KnowraSea spiderLinked fromLinked fromThe 6 pages that link to Sea spider, each with the reason it gives.All 6Broader topic 3Related 1Compared with 2DecapodaCompared with: Sea spiders have long legs and a superficial resemblance to some decapods, but belong to another arthropod lineage.ArachnidCompared with: Its name and appearance suggest a spider, but it belongs outside Arachnida.