Interesting individual with a forked tail
Restos de Cangrejos cacerola en manglar.
Bay side access from lot Charlie Sandy Hook it is I believe a limulus Polyphemus
Merostomata is the name given to a grouping of the extinct Eurypterida (sea scorpions) and the Xiphosura (horseshoe crabs). The term was originally used by James Dwight Dana to refer to Xiphosura only, but was emended by Henry Woodward to cover both groups.