The second has for its pair of appendages the small pair of limbs which in all living Arachnids is either chelate or retrovert (as in spiders), and is known as the chelicerae.
The first pair of limbs is often chelate or prehensile, rarely antenniform; whilst the second, third and fourth may also be chelate, or may be simple palps or walking legs.
Appendages of 2nd pair, with their basal segments uniting in the middle line below the mouth, weaklychelate at apex.
The pedipalpi become chelate before becoming jointed, and the chelicerae also early acquire their characteristic form.
On the other hand, the presence of chelate appendages innervated in the adult by the supra-oesophageal ganglia rather points to a common phylum for the Pycnogonida and Arachnida; though as shewn above (p.
Such chelate rami or limb-branches are independently developed in Crustacea and in Arachnida, and are carried by somites of the body which do not correspond in position in the two groups.
In Slimonia and in Stylonurus they are supposed by Woodward to be represented by the small non-chelate antennae seen in Fig.
It is instructive to observe the nature and the anterior position of this pair of appendages in the allied sea-scorpions, especially in Pterygotus, where the onlychelate organs are found in these long, antennae-like chelicerae.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "chelate" in a variety of sentences. We hope that you will now be able to make sentences using this word.
