Arachnida are in the class Arachnida themselves, not in reptilia.
arachnida has 15 segments
Maria Rambla has written: 'Opiliones (Arachnida)' -- subject(s): Arachnida, Opiliones
A tarantula is an arachnid, which belongs to the class Arachnida, not an insect or a reptile. Arachnids, like tarantulas, have eight legs, two body segments, and fangs for injecting venom, distinguishing them from insects and reptiles.
arachanae
R. I. Pocock has written: 'Arachnida' -- subject(s): Arachnida, Spiders, Classification 'Mammalia' -- subject(s): Mammals
Arachnida
Brent D. Opell has written: 'Revision of the genera and tropical American species of the spider family Uloboridae' -- subject(s): Arachnida, Classification, Uloboridae 'The Nearctic Hahniidae (Arachnida: Araneae)' -- subject(s): Arachnida, Classification, Hahniidae
Vincent Daniel Roth has written: 'Distribution and taxonomy of the Genus Cybaeus in Oregon (Arachnida: Agelenidae)' -- subject(s): Arachnida
Arachnida
8 legs
J. H. P. Sankey has written: 'British harvestmen' -- subject(s): Arachnida, Identification, Opiliones 'Provisional atlas of the harvest-spiders (Arachnida : Opiliones) of the British Isles' -- subject(s): Arachnida, Geographical distribution, Maps, Opiliones
Ticks belong to the class Arachnida and are part of the subclass Acari, which includes mites. They are further classified into two main families: Ixodidae (hard ticks) and Argasidae (soft ticks). Ticks are arachnids, making them relatives of spiders and scorpions, and they are known for their role as ectoparasites, feeding on the blood of mammals, birds, and sometimes reptiles and amphibians. Their scientific classification can be summarized as follows: Kingdom Animalia, Phylum Arthropoda, Class Arachnida, Subclass Acari, Order Ixodida.