Horseshoe Crab Small 182×320 Medium 363×640 Large 582×1024 Download Tiff Original 1363×2400 | (3.1 MB) Description Horseshoe crabs represent an order called Xiphosura, from the fact that the end of the abdomen is furnished with a long sword-like spine. Keywords Arthropoda, crustacea, crustacean, horseshoe crab, invertebrates, king crab, Xiphosura Galleries Spiders, Mites and Scorpions Source: H. Alleyne Nicholson, An Introductory Text-book of Zoology(Edinburgh:William Blackwood and Sons, 1971) 74
