. Anatomy of the king crab (Limulus polyphemus, Latr.). Crabs. Fig. 18. bed of a Silurian sea now contributing to form the county of Shropshire. The ancestral pleon (c, ib.) has been almost " rubbed out " in the thousand- '^ fold generations of which the Salem King-crab is the heir; but the palae- ozoic taint sticks to the nerve-element. Or shall we say that Limulus, made perfect for its sphere and habits of life, must have its " alpen-stock " unbroken, of compact stuff without joints near the grasped end? But then the teleologist or thaumatogenist has to give an account of
. Anatomy of the king crab (Limulus polyphemus, Latr.). Crabs. Fig. 18. bed of a Silurian sea now contributing to form the county of Shropshire. The ancestral pleon (c, ib.) has been almost " rubbed out " in the thousand- '^ fold generations of which the Salem King-crab is the heir; but the palae- ozoic taint sticks to the nerve-element. Or shall we say that Limulus, made perfect for its sphere and habits of life, must have its " alpen-stock " unbroken, of compact stuff without joints near the grasped end? But then the teleologist or thaumatogenist has to give an account of the in- termediate or ' evolutionary transitional' condition of the three pleonal segments manifest outwardly, as doubtless by their nerve-pairs and pro- bably ganglion-centres within, but soldered together or " anchylosed," in Konig's and Baily's Belinurus, as in Limulus. Should any persevere in objecting to the King-crabs' being called Crustacea, by. Hemiaspis limu- loides, Wd., op. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Owen, Richard, 1804-1892. London, Printed by Taylor and Francis
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