Abstract
V THE development of the beautiful Comatula rosacca (Fig. 41) has been described in the “Philosophical Transactions,” by Piof. Wyville Thomson.* The larva quits the egg, as shown in Fig. 42, in the form of an oval body about 1/30 inch in length, something like a small barrel, surrounded by four bands or hoops of long vibratile hairs or ciliæ. There is also a still longer tuft of hairs at the narrower posterior end of the body. Gradually a number of minute calcareous spines and plates make their appearance (Fig. 43) in the body of this larva, and at length arrange themselves in a definite order, so as to form a bent calcareous club or rod with an enlarged head.
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References
Philosophical Transactions, 1865, vol. clv. 513.
Thomsoa, on the Embryology of the Echinodermata, Natural History Review, 1863, p. 415.
Zeits. fur Wiss. Zool., 1864, p. 228.
Introduction to Etymology, 6th Ed. i. p. 61.
Metomorphoses de l'Hommes et des Animaux, p. 113.
Darwin, Origin of Species, 4th Ed. p. 532.
Principles of Biology, Vi. p. 349.
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LUBBOCK, J. On the Origin and Metamorphoses of Insects * . Nature 8, 107–109 (1873). https://doi.org/10.1038/008107a0
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DOI: https://doi.org/10.1038/008107a0
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