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Basic arrangement of spider eyes, viewed from above. Most spiders have eight eyes, which tend to be arranged into two rows of four eyes on the head region. The eyes can be categorised by their location and are divided into the anterior median eyes (AME), anterior lateral eyes (ALE), posterior median eyes (PME), and posterior lateral eyes (PLE).
The specific arrangement of the eyes is one of the features used in classifying different species. Most species of the Haplogynae have six eyes, although some have eight (Plectreuridae), four (e.g., Tetrablemma) or even two (most Caponiidae). Sometimes one pair of eyes is better developed than the rest, or even, in some cave species, there are ...
This jumping spider's main ocelli (center pair) are very acute. The outer pair are "secondary eyes" and other pairs of secondary eyes are on the sides and top of its head. Spiders do not have compound eyes, but instead have several pairs of simple eyes with each pair adapted for a specific task or tasks.
In the mountains of Ecuador lurked an eight-eyed creature with a “bad temperament.” When scientists encountered the hairy animal, they discovered its bristly personality — and a new species.
Canthigaster amboinensis, commonly known as the Ambon pufferfish, the Ambon toby, or the spider-eye puffer, is a species of pufferfish of the family Tetraodontidae.The species is commonly seen in the tropical Indo-Pacific Ocean, including Australia, Indonesia, Japan, Papua New Guinea, Taiwan and the Hawaiian Islands. [2]
Six-eyed spiders are spiders that, unlike most spider species, lack the principal pair of eyes, leaving them with only six eyes instead of the usual eight. [1]
Canthigaster amboinensis (Bleeker, 1865) (Spider-eye puffer) Spider-eye puffer (Canthigaster amboinensis) Canthigaster axiologus Whitley, 1931 (Pacific crown toby) Canthigaster aziz Matsuura, Bogorodsky, Mal & Alpermann 2020 (Aziz's toby) [4] Canthigaster bennetti (Bleeker, 1854) (Bennett's sharpnose puffer) Canthigaster callisterna (J. D ...
Like spiders in general, most species of Mygalomorphae have eight eyes, one pair of principal and three pairs of secondary eyes. Chelicerae of a black wishbone spider . Their chelicerae and fangs are large and powerful and have ample venom glands that lie entirely within their chelicerae. These weapons, combined with their size and strength ...