. Jelly-fish, star-fish and sea-urchins [microform] : being a research on primitive nervous systems. Nervous system; Jellyfishes; Starfishes; Sea urchins; Nerveux, Système; Méduses; Astérides; Echinides. STAR-FISH AND SEA-URCHINS. 263 sea-cucumbers and lily-stars (Fig. 38). Without, however, waiting to consider these, I shall go a little more particularly into the modification of Star-fish structure which is presented by the sea-urchin, or Echinus (Fig. 39).. Fig. 37.—A Brittle-star. (I'rom CasscU's " Nat. ;) Externally, the animal presents the form of an orange, and is complete


. Jelly-fish, star-fish and sea-urchins [microform] : being a research on primitive nervous systems. Nervous system; Jellyfishes; Starfishes; Sea urchins; Nerveux, Système; Méduses; Astérides; Echinides. STAR-FISH AND SEA-URCHINS. 263 sea-cucumbers and lily-stars (Fig. 38). Without, however, waiting to consider these, I shall go a little more particularly into the modification of Star-fish structure which is presented by the sea-urchin, or Echinus (Fig. 39).. Fig. 37.—A Brittle-star. (I'rom CasscU's " Nat. ;) Externally, the animal presents the form of an orange, and is completely covered with a largo number of hard calcareous spines, on which account it derives its scientific name of Echinus, or hedge- hog (the spines have been removed from the larger portion of the specimen represented in Fig. 39). In the li^^ng animal these spines are fully movable in all directions, each being mounted on a ball-and- ' ^1 '•i it '! 41. 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 Romanes, George John, 1848-1894. London : K. Paul, Trench


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Keywords: ., bookcentury1800, bookdeca, booksubjectnervoussystem, bookyear1895