. A manual of zoology. Zoology. 304 ECIIIXODKRMA are situated the spines, either long ami pointed or swolleit to splierieal phites. These spines are nio\ed lo' inuseles so that the\- ser\"e Koth as proteeting and loeomotor stritctnres. Tire ambulacra! plates are distin- gtiislied from the iirteramliuhieral li)' the ainlHihteral pores by which the ambulacra on the surface are coniu>cted with the internal radial canals atid ampulke. lu most sea urchins the paired grouping of the pores results from the fact that a double canal extends from ampulla to Please note that these im
. A manual of zoology. Zoology. 304 ECIIIXODKRMA are situated the spines, either long ami pointed or swolleit to splierieal phites. These spines are nio\ed lo' inuseles so that the\- ser\"e Koth as proteeting and loeomotor stritctnres. Tire ambulacra! plates are distin- gtiislied from the iirteramliuhieral li)' the ainlHihteral pores by which the ambulacra on the surface are coniu>cted with the internal radial canals atid ampulke. lu most sea urchins the paired grouping of the pores results from the fact that a double canal extends from ampulla to 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 Hertwig, Richard, 1850-1937; Kingsley, J. S. (John Sterling), 1854-1929, ed. and tr. New York, H. Holt
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectzoology, bookyear1912
