Halloween hermit crab It is native to the Indo-Pacific region, including the Red Sea and Hawaii. It is very similar in appearance to three other species in the same genus: "C. tricolor", "C. vakovako" and "C. galzini", only distinguishable by the color of its striae. The halloween hermit crab will grow on average to in length, which is fairly large in comparison to other hermit crabs. It has a noticeably flattened pure white shield, approximately long. It is a nocturnal species, and has been described as "conspicuous". It lives primarily in empty cone shells, mainly those of snails or tritons. Like other hermit
On the Tendency of Species to form Varieties; and on the Perpetuation of Varieties and Species by Natural Means of Selection of two indefatigable naturalists, Mr. Charles Darwin and Mr. Alfred Wallace. The gentlemen having, independently and unknown to one another, conceived the same very ingenious theory to account for the appearance and perpetuation of varieties and of specific forms on our planet, and both fairly claim the merit of being original thinkers in this important line of inquiry; but neither of them having published his views, though Mr. Darwin has for many years past been repeatedly urged by us to do so, and both authors having now unreservedly placed their papers in our hands, we think it would best promote