. The wonder of life. Biology; Natural history; Zoology. Fig. 27.—^Deep-sea Crinoid (Metacrinus), sliowing the attaching ' roots' (r), the stalk (st) giving off ' cirri' (ci), and the calyx (ca) with ten feathered arms (a).. 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 Thompson, John Arthur, Sir, 1861-1933. London, A. Melrose, Ltd

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Keywords: ., bookcentury1900, booksubjectnaturalhistory, booksubjectzoology