Colossendeis colossea is a species of sea spider (class Pycnogonida) in the family Colossendeidae. The species was first described by Edmund B. Wilson in 1881.[1] It is the largest pycnogonid species known to science, reaching a leg span of 70cm (30inches). Body length, including proboscis and abdomen, can reach 7cm (03inches).
Colossendeis colossea is a deep-water species inhabiting continental slopes at depths between 420mand5200mm (1,380feetand17,100feetm) m. It has a semi-cosmopolitan distribution[1] in all main oceans apart from the Arctic Ocean.