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{{5e Monster Short|Spider 5e|Spider|Overview|Beast, Spider}}
[[File:Loxosceles reclusa.jpg|thumb|right|180px|Spider<br />by John C. Stennis Space Center, National Aeronautics and Space Administration (NASA)<br />via Mediawiki Commons<br />Public Domain<br />''Image is not part of the SRD'']]
{{blockref|'''Spiders''' ([[order (biology)|order]] '''Araneae''') are air-breathing [[arthropod]]s that have eight legs and [[chelicerae]] with fangs able to inject [[venom]]. They are the largest order of [[arachnid]]s and rank seventh in total species diversity among all [[Order (biology)|orders]] of organisms.<ref name=sebastin>Sebastin, P.A. & Peter, K.V. (eds.) (2009). ''[https://books.google.com/books?id=9oVHO-3ZGx4C&printsec=frontcover Spiders of India]''. Universities Press/[[Orient Blackswan]]. {{ISBN|978-81-7371-641-6}}</ref> Spiders are found worldwide on every continent except for [[Antarctica]], and have become established in nearly every [[habitat]] with the exceptions of air and sea colonization. {{As of|2019|July}}, at least 48,200 spider [[species]], and 120 [[Family (biology)|families]] have been recorded by [[Taxonomy (biology)|taxonomists]].<ref name=WSC_stats /> However, there has been dissension within the [[scientific community]] as to how all these families should be classified, as evidenced by the over 20 different classifications that have been proposed since 1900.<ref name="Bioofspiders">{{cite book |title= Biology of Spiders|url= https://archive.org/details/biologyofspiders00foel_0|url-access= registration|last= Foelix|first= Rainer F.|year= 1996|publisher= Oxford University Press|location= New York|isbn= 978-0-19-509593-7|page= [https://archive.org/details/biologyofspiders00foel_0/page/3 3]}}</ref>
{{5e Monster Short|Spider|Spider|Overview|Beast, Spider
|habitat=Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground, Urban}}


Anatomically, spiders differ from other arthropods in that the usual body [[segmentation (biology)|segments]] are fused into two [[Tagma (biology)|tagmata]], the [[cephalothorax]] and [[abdomen]], and joined by a small, cylindrical [[spider anatomy|pedicel]]. Unlike [[insect]]s, spiders do not have [[Antenna (biology)|antennae]]. In all except the most primitive group, the [[Mesothelae]], spiders have the most centralized nervous systems of all arthropods, as all their [[ganglion|ganglia]] are fused into one mass in the cephalothorax. Unlike most arthropods, spiders have no [[extensor]] muscles in their limbs and instead extend them by hydraulic pressure.
{{refstart}}'''Spiders''' ({{wikip|order (biology)|order}} '''Araneae''') are air-breathing {{wikip|arthropod}}s that have eight legs and {{wikip|chelicerae}} with fangs able to inject {{wikip|venom}}. They are the largest order of {{wikip|arachnid}}s… Spiders are found worldwide on every continent except for {{wikip|Antarctica}}, and have become established in nearly every {{wikip|habitat}}…


Their abdomens bear appendages that have been modified into [[spinneret]]s that extrude [[spider silk|silk]] from up to six types of glands. [[Spider web]]s vary widely in size, shape and the amount of sticky thread used. It now appears that the spiral orb web may be one of the earliest forms, and spiders that produce tangled cobwebs are more abundant and diverse than [[orb-web spider]]s. Spiderlike [[arachnid]]s with silk-producing [[spigot]]s appeared in the [[Devonian]] [[Period (geology)|period]] about {{ma|386}}, but these animals apparently lacked spinnerets. True spiders have been found in [[Carboniferous]] rocks from {{ma|318|299}}, and are very similar to the most primitive surviving [[order (biology)|suborder]], the [[Mesothelae]]. The main groups of modern spiders, [[Mygalomorphae]] and [[Araneomorphae]], first appeared in the Triassic period, before {{ma|200}}.|<ref>[https://en.wikipedia.org/wiki/Spider Wikipedia - Spider] ''(excerpt, accessed 2020-04-03)''. Licensed [[CC-BY-SA]].</ref>}}
Anatomically, spiders differ from other arthropods in that the usual body {{wikip|segmentation (biology)|segments}} are fused into two {{wikip|Tagma (biology)|tagmata}}, the {{wikip|cephalothorax}} and {{wikip|abdomen}}, and joined by a small, cylindrical {{wikip|spider anatomy|pedicel}}. Unlike {{wikip|insect}}s, spiders do not have {{wikip|Antenna (biology)|antennae}}. In all except the most primitive group, the {{wikip|Mesothelae}}, spiders have the most centralized nervous systems of all arthropods, as all their {{wikip|ganglion|ganglia}} are fused into one mass in the cephalothorax. Unlike most arthropods, spiders have no {{wikip|extensor}} muscles in their limbs and instead extend them by hydraulic pressure.
 
Their abdomens bear appendages that have been modified into {{wikip|spinneret}}s that extrude {{wikip|spider silk|silk}} from up to six types of glands. {{wikip|Spider web}}s vary widely in size, shape and the amount of sticky thread used. It now appears that the spiral orb web may be one of the earliest forms, and spiders that produce tangled cobwebs are more abundant and diverse than {{wikip|orb-web spider}}s.{{refend||<ref>[https://en.wikipedia.org/wiki/Spider Wikipedia - Spider] ''(excerpt, accessed 2020-04-03)''. Licensed [[CC-BY-SA]].</ref>}}


==List of Spiders==
==List of Spiders==
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{{5e Monster List|Spider}}
{{5e Monster List|Spider}}
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==Sources and Notes==
==Sources and Notes==
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Latest revision as of 08:50, 20 February 2024

D&D 5e (2014) Varied ʰ 
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Spider
by John C. Stennis Space Center, National Aeronautics and Space Administration (NASA)
via Mediawiki Commons
Public Domain
Image is not part of the SRD
Spider Overview 

Spiders (order Araneae) are air-breathing arthropod s that have eight legs and chelicerae with fangs able to inject venom . They are the largest order of arachnid s… Spiders are found worldwide on every continent except for Antarctica , and have become established in nearly every habitat

Anatomically, spiders differ from other arthropods in that the usual body segments are fused into two tagmata , the cephalothorax and abdomen , and joined by a small, cylindrical pedicel . Unlike insect s, spiders do not have antennae . In all except the most primitive group, the Mesothelae , spiders have the most centralized nervous systems of all arthropods, as all their ganglia are fused into one mass in the cephalothorax. Unlike most arthropods, spiders have no extensor muscles in their limbs and instead extend them by hydraulic pressure.

Their abdomens bear appendages that have been modified into spinneret s that extrude silk from up to six types of glands. Spider web s vary widely in size, shape and the amount of sticky thread used. It now appears that the spiral orb web may be one of the earliest forms, and spiders that produce tangled cobwebs are more abundant and diverse than orb-web spider s.

List of Spiders

7 Spiders

Monster Size Type Tags Alignment HP CR Habitat Marked Source
Swarm of Spiders Medium Swarm Beast, Insect, Spider Unaligned 22 1/2 Desert, Forest, Grassland, Hill, Swamp, Underdark, Underground, Urban Canon Varied, SRD5, MM5
Roil (Individual) Large Monstrosity Spider, Phase Spider Unaligned 32 3 Desert, Forest, Grassland, Hill, Underdark, Underground, Urban Canon Varied, GoS, SRD5
Spider Overview Overview Beast, Spider Arctic, Coastal, Desert, Forest, Grassland, Hill, Mountain, Swamp, Underdark, Underground, Urban Noncanon Varied
Giant Spider Large Beast Spider Unaligned 26 1 Desert, Forest, Swamp, Underdark, Underground, Urban Canon SRD-OGL v5.1, SRD-CC v5.1
Mammoth Spider Huge Beast Spider Unaligned 95 5 Noncanon, User Creation Rlyehable
Phase Spider Large Monstrosity Spider, Phase Spider Unaligned 32 3 Desert, Forest, Grassland, Hill, Underdark, Underground, Urban Canon SRD-OGL v5.1
Giant Wolf Spider Medium Beast Spider Unaligned 11 1/4 Coastal, Desert, Forest, Grassland, Hill Canon SRD-OGL v5.1

Sources and Notes


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