. Discovery reports. Discovery (Ship); Scientific expeditions. Fig. I. Scalpellum gibberum. a. Metanauplius (total length 1-09 mm.), b. Pupa just attached (total length 1-23 mm.), c. Pupa with primordial valves, lateralia and dorsal scales of peduncle developed (total length 1-25 mm.), d. Somewhat older stage (total length 1-23 mm.), e, f. Young specimens (total lengths 1-23 and 1-52 mm. respectively). valves. In ho other species have I seen any differences in the structure in the first and later layers of the laterals; this fact does not seem to be of any phylogenetic importance, although I h
. Discovery reports. Discovery (Ship); Scientific expeditions. Fig. I. Scalpellum gibberum. a. Metanauplius (total length 1-09 mm.), b. Pupa just attached (total length 1-23 mm.), c. Pupa with primordial valves, lateralia and dorsal scales of peduncle developed (total length 1-25 mm.), d. Somewhat older stage (total length 1-23 mm.), e, f. Young specimens (total lengths 1-23 and 1-52 mm. respectively). valves. In ho other species have I seen any differences in the structure in the first and later layers of the laterals; this fact does not seem to be of any phylogenetic importance, although I have thought it well to mention it. The rostrum and rostro-Iaterals appear in the fourth stage but, like the laterals of the third stage, they have only one 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; Great Britain. Colonial Office. "Discovery" Committee. London, New York, Cambridge University Press
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