These beautiful illustrations are from the Challenger Reports available online. The first is of the very large, deep water, pycnogonid sea spider, Colossendeis gigas. The second (below the fold) contains Octopus levis and Octopus bermudensis both new species described on the expedition. The last contains at center a gastropod from the genus Xenophora that glues other shells onto its own shell as it is produced. Around the edge are various species from the genus Natica.
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Craig McClain is the Assistant Director of Science for the National Evolutionary Synthesis Center, created to facilitate research to address fundamental questions in evolutionary science. He has conducted deep-sea research for 11 years and published over 40 papers in the area. He has participated in dozens of expeditions taking him to the Antarctic and the most remote regions of the Pacific and Atlantic. Craig’s research focuses mainly on marine systems and particularly the biology of body size, biodiversity, and energy flow. He focuses often on deep-sea systems as a natural test of the consequences of energy limitation on biological systems. He is the author and chief editor of Deep-Sea News, a popular deep-sea themed blog, rated the number one ocean blog on the web and winner of numerous awards. Craig’s popular writing has been featured in Cosmos, Science Illustrated, American Scientist, Wired, Mental Floss, and the Open Lab: The Best Science Writing on the Web.