Chelicerae - Wikipedia
网页The chelicerae (/ kəˈlɪsəriː /) are the mouthparts of the subphylum Chelicerata, an arthropod group that includes arachnids, horseshoe crabs, and sea spiders. Commonly referred to as "jaws", chelicerae may be shaped as …
Chelicera | anatomy | Britannica
网页chelicera. anatomy. Learn about this topic in these articles: major reference. In arachnid: Body and appendages. …first of which are the chelicerae, the only appendages that are in front of the mouth. In many forms they are chelate, or pincerlike, and are used to …
Chelicerata - Wikipedia
网页The chelicerae, which give the group its name, are the only appendages that appear before the mouth. In most sub-groups, they are modest pincers used to feed. However, spiders' chelicerae form fangs that most species use to inject venom into prey.
Chelicera - A-Z Animals
网页2024年5月27日 · A chelicera (plural, chelicerae) is a component of the fang- or pincer-like mouthparts of arthropods belonging to the subphylum Chelicerata. Of the many pairs of appendages these animals possess, the chelicerae represent the first pair.
Chelicerata - Facts, Classes, Habitat, Examples, & Pictures
网页2024年3月30日 · Excretory System. Chelicerates are ammonotelic, expelling waste from the body in the form of ammonia, which is usually released through gills or eliminated through the anus as feces. They also use specialized nephridia, known as ‘little kidneys,’ to remove additional waste in the form of urine.
Chelicera Definition & Meaning - Merriam-Webster
网页noun. che· lic· era ki-ˈli-sə-rə. plural chelicerae ki-ˈli-sə-ˌrē. : one of the anterior pair of appendages of an arachnid often specialized as fangs. cheliceral.
Flexi answers - What are chelicerae? - CK-12 Foundation
网页Chelicerata is a fairly large subphylum of arthropods with about 70,000 species (mostly predatory) including spiders, scorpions, mites, and ticks. Their defining characteristic is a pair of specialized appendages called chelicerae. Chelicerae are pointed mouthparts used to grasp and immobilize prey. Some have a sharp fang connected to venom ...
Class Arachnida | Department of Entomology
网页All arachnids belong to a subphylum (a division of Arthropoda) known as the Chelicerata, of which there are approximately 65,000 described species (~8,000 in North America). They are characterized by having two body regions, a cephalothorax and an abdomen.
Chelicera - Definition and Examples - Biology Online Dictionary
网页2021年9月23日 · Chelicerates, such as arachnids, sea spiders, and horseshoe crabs, are known for having segmented bodies with paired jointed limbs or appendages. The first pair of these appendages is termed chelicerae, which etymologically means jaws or horns and from where the name of this group is derived.
Chelicerates: Current Biology - Cell Press
网页2018年7月23日 · The seven-segmented prosoma bears six pairs of appendages: the chelicerae, which are typically used for feeding; the pedipalps, which are unique to Chelicerata and serve an array of functions; and four pairs of walking legs. However, there are many variations of this basic plan.