Peltidium is a prodorsal shield found in animals of the Subphylum
Chelicerata
The subphylum Chelicerata (from New Latin, , ) constitutes one of the major subdivisions of the phylum Arthropoda. It contains the sea spiders, horseshoe crabs, and arachnids (including harvestmen, scorpions, spiders, solifuges, ticks, and mi ...
, in the Phylum
Arthropoda
Arthropods (, (gen. ποδός)) are invertebrate animals with an exoskeleton, a segmented body, and paired jointed appendages. Arthropods form the phylum Arthropoda. They are distinguished by their jointed limbs and cuticle made of chitin, ...
. In some groups (
Schizomida
Schizomida (common name shorttailed whipscorpion) is an order of arachnids, generally less than in length.
The order is not yet widely studied. About 300 species of schizomids have been described worldwide, most belonging to the Hubbardiidae fa ...
,
Palpigradi
Palpigrades, commonly known as microwhip scorpions, are arachnids belonging to the order Palpigradi.
Description
Palpigrades belong to the arachnid class. They are the sister group to Solifugae, no more than in length, and averaging . They have ...
,
Solpugida and
Opiliones
The Opiliones (formerly Phalangida) are an order of arachnids colloquially known as harvestmen, harvesters, harvest spiders, or daddy longlegs. , over 6,650 species of harvestmen have been discovered worldwide, although the total number of ext ...
) the peltidium, also known as schizopeltid, can be subdivided in: propeltidium, a carapace-like shield that covers the
proterosoma, which comprises the fused acron (protocerebral region) and first four segments; and two free segments, mesopeltidium and metapeltidium (Online Dictionary of Invertebrate Zoology).
External links
Online Dictionary of Invertebrate Zoology
References
{{reflist
Chelicerate anatomy