Two! About 1.5" across ("large" for local sea spiders!). Additional photos include highly photoshopped versions to better see their markings.
Found upon drift wood near Malaquite beach at North Padre Island near Corpus Christi, Tx
Two legs are missing. Found on rock at intracoastal under a peir in 3' water.
Sea spiders, also called Pantopoda or pycnogonids, are marine arthropods of class Pycnogonida. They are cosmopolitan, found especially in the Mediterranean and Caribbean Seas, as well as the Arctic and Antarctic Oceans. There are over 1300 known species, ranging in size from 1 to 10 millimetres (0.039 to 0.39 in) to over 90 cm (35 in) in some deep water species. Most are toward the smaller end of this range in relatively shallow depths, however, they can grow to...