The scorpion, a Heterometrus spinifer, is completely edible, despite the arachnid being deadly if alive.
His comparison of the arachnid appendages with those of insects and Crustacea is very curious.
It treats of curious animals which the author considers as more nearly allied to the Insecta than to the Crustacea or arachnid.
The arachnid are followed by the myriapoda (centipedes, etc.), and these by the insecti or true insects.
The characteristics of the median eyes must then be especially sought for in the arachnid group.
"a spider," 1869, from French arachnide (1806) or Modern Latin Arachnida, introduced as name for this class of arthropods 1815 by French biologist Jean Baptiste Pierre Antoine de Monet de Lamarck (1744-1829), from Greek arakhne (fem.) "spider; spider's web," which probably is cognate with Latin aranea "spider, spider's web" (borrowed in Old English as renge "spider"), from aracsna. The Latin word could be a Greek borrowing or both could be from a common root. An earlier noun form was arachnidian (1828).