. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. io6 DISCOVERY REPORTS Morphology. Lateral commissural canals are, I think, always present. In S. turgida they are sometimes absent. There are two inconstant characters about the commissural canals: (i) the position on the dorsal radial canal from which they spring—sometimes opposite each other, but usually the right-hand one given off before the left; (2) their course before junction with the lateral radial canals. Crodd Ccom C rod lot Crodd -Ccom Crodd. Please note that these images are extract
. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. io6 DISCOVERY REPORTS Morphology. Lateral commissural canals are, I think, always present. In S. turgida they are sometimes absent. There are two inconstant characters about the commissural canals: (i) the position on the dorsal radial canal from which they spring—sometimes opposite each other, but usually the right-hand one given off before the left; (2) their course before junction with the lateral radial canals. Crodd Ccom C rod lot Crodd -Ccom Crodd. 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 Institute of Oceanographic Sciences (Great Britain); National Institute of Oceanography of Great Britain; Great Britain. Colonial Office. Discovery Committee. London ; New York : Cambridge University Press
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