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Thread: Scorpion Glossary

  1. #1
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    Scorpion Glossary

    A partial A to Z of scorpion jargon. you may recognize a lot of the terms from other fields of biological study. I'll come through and edit this list as I compile more terminology and have more motivation, going through and making things bold and placing the italics where needs be and correcting all the spelling is quite draining.


    • A
      Aculeus: the curved stinger arising distally from the telson vesicle. The aculeus is hollow and bears a small distal opening to allow venom from the internal venom glands of the vesicle to be injected for predation or defense.
      Anteriad: towards the front (anterior)
      Arboreal: living on trees and other large plants.


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    • B
      Basal pectinal piece: A rectangular plate on the underside of mesosomal segment II to which the pectines attach.
      Basitarsus: The proximal portion of the tarsus, located between the tibia and telotarsus.
      Book lung: a simple type of lung found in spiders and scorpions. Easily seen on the underside of both.


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    • C
      Carapace: The dorsal plate of the cephalothorax, bearing the lateral and median eyes. eSSENTIALLY, the head.
      Carinae: Cuticular ridges on body surfaces, often associated with attachment of internal musculature. The strength and granulation of carinae are of considerable taxonomic importance.
      Cephalothorax: otherwise known as the head, this are where the eyes are located. Also known as prosoma
      Chela: The pincer of the pedipalp, comprising the chela palm and the fixed and movable fingers (Tibia and Tarsus).
      Chelicerae: the anteriormost set of appendages in the scorpion, comprising the mouthparts. The chelicerae of scorpions are chelate and chitin.
      Chitin: A structural polysaccharide that makes up the bulk of the scorpion cuticle. Added to chitin are a variety of other substances, such as proteins (sclerotized and unsclerotized) and waxes which give special properties to the cuticle.
      Coxa: The proximal segment of the appendage (chelicera, pedipalp, leg) which joins the appendage to the body. The coxae in modern scorpions, together with the sternum, make up the coxosternal region on the underside of the cephalothorax.
      Crepuscular: The low light (twilight) periods of the morning and evening (dawn and dusk).
      Cuticle: The nonliving portion of the scorpion's integument, secreted by the underlying epidermis. The cuticle is a distinctly layered structure made of chitin, waxes, sclerotized and unsclerotized proteins, and other materials.


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    • D
      Dactyl: The median claw at the ventrodistal tip of the telotarsus of the leg. The dactyl is smaller than the ungues (tarsal claws).
      Diurnal: active during the daylight hours.


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    • E
      Ecdysis: the process of molting, or shedding the exoskeleton.
      Exoskeleton: the skelton or supporting structure on the outside of an arthropod's body.
      Exuviae: the cast exoskeleton of an arthropod.


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    • F
      Forceps: a tool commonly used in the hobby for picking up small insect or arachnid specimens; tweezers, hemostats and the like.


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    • G
      Gravid: pregnant


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    • H


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    • I
      Instar: the stage of an insect between successive molts; for example, the first instar is the stage between birthing and the first molt.


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    • J
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    • K


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    • L
      Lateral Eyes: usually paired, scorpions have 0-5 pairs of Lateral Eyes found on the front edge of the carapace.


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    • M
      Manus: the area proximal to the Tibia, the "hand" of the chela so to speak
      Medial Eyes: the pair of eyes found on the dorsal (top) of the carapace.
      Mesic: belonging to a moist or humid habitat
      Mesosoma: the body. Part of the Abdomen, has seven separate segments.
      Metasoma: the tail. Part of the Abdomen, has five connected segments.


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    • N
      Nocturnal: active at night.


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    • O
      Obligate Burrower: These scorpions are compelled to burrow. Hadrurus and Opistopthalmus speecies are examples of Obligate Burrowers.
      Opportunistic Burrower: These scorpions will often take over burrows left by other animals, or in small hides under rocks, tree roots, etc. Most Parabuthids are Opportunistic Burrowers.


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    • P
      Parthenogenesis: the ability to produce fertile eggs without male involvement.
      Pectine: a "V"-shaped comb-like appendage on the abdomen of a scorpion that has sensory functions.
      Pinheads: - Very small crickets. Perfect for feeding small 2nd instar scorpions.
      Posteriad: towards the rear (posterior)


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    • Q
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    • R


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    • S
      Seta: an external bristle, or stout hair. Setae is the plural
      Spermatophore: a capsule containing spermatozoa transferred in entirety to the female's ovipore during copulation
      Stridulate: to make sound by rubbing two body parts together.
      Substrate: ground material (sand, soil, etc).


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    • T
      Tarsus: Movable finger of the chela. Also the 7th segment of each leg.
      Telson: the final segment of the metasoma. contains the venom glands and Aculeus.
      Terrestrial: Ground dwelling species
      Tibia: The Fixed finger of the chela, often mistakenly referred to as the manus. Also the 5th leg segment.


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    • U


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    • V
      Vesicle: Bulbous part of telson which houses venom glands.


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    • W


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    • X
      Xeric: belonging to a dry or arid habitat


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    • Y
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    • Z[/*:m:2zo6bbhw]
    What can be done is not what should be done but you have the right to your opinion...note that you do not have the right to not be offended and are therefore subject to another's opinion that you can be put in a 5'x9' cell and do just fine.

  2. #2
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    Re: Scorpion Glossary

    Thanks for posting this. I'm going to sticky it.

    It's nice to know a lot of the terms for scorps are the same for Ts... should make it easy for me to understand them a little better.

  3. #3
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    Re: Scorpion Glossary

    since they're from the same class they do share a lot of terms
    What can be done is not what should be done but you have the right to your opinion...note that you do not have the right to not be offended and are therefore subject to another's opinion that you can be put in a 5'x9' cell and do just fine.

  4. #4
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    Re: Scorpion Glossary

    Awesome information provided!

    Sticky it "Scorpions for Dummies"

    I definitely learned some things looking at that, thanks!

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