Merostomata

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Noun

Merostomata - used in some classifications; includes the orders Xiphosura and Eurypterida

class Merostomata

arthropod - invertebrate having jointed limbs and a segmented body with an exoskeleton made of chitin

Chelicerata, superclass Chelicerata - spiders; scorpions; horseshoe crabs

order Xiphosura, Xiphosura - horseshoe crabs and extinct forms

Eurypterida, order Eurypterida - extinct aquatic arthropods of the Paleozoic

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References in periodicals archive ?

First data on the distribution of horseshoe crabs (Chelicerata: Merostomata) in Palawan, with notes on their status in the Philippines.

GROWTH PERFORMANCE AND FEED UTILIZATION OF LOW-COST ARTIFICIAL FEEDS FOR JUVENILE ASIAN HORSESHOE CRAB CULTURE

Percent contribution of CA1 and CA2 Average Average proportion individual of taxon weight per per Classification Taxon PFO station station Mollusca Placopecten magellanicus 28.2 0.0011 0.2433 Decapodiformes 53.8 0.2941 1.0434 Merostomata Limulus polyphemus 12.8 1.5450 22.7470 Crustacea Unclassified shrimp 15.4 0.0004 0.0554 Homarus americanus 33.3 1.6580 0.9347 Brachyura 74.4 0.6235 1.4495 Pelagic fish Alosa spp.

Spring occurrence of fish and macro-invertebrate assemblages near designated wind energy areas on the northeast U.S. continental shelf

Although they have a hard shell and claws, the word "crab" is a misnomer as horseshoe crabs are not true crabs but are in a class of their own (Merostomata), and are more closely related to spiders and scorpions.