. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. Q b Fig. I. First Nauplius ( x 46). a, specimen dissected from egg; b, free-swimming specimen. Table IV. Occurrence of First Nauplius Station Date Depth m. Number Length mm. 537 539 19. xii. 30 19. xii. 30 750-500 250-100 I I 0-63 0-66 Of the two free-swimming larvae one measured 0-63 and the other o-66 mm. They were presumed to be E. superba from their relatively large size compared with other Nauplii in the plankton, from their similarity to nearly hatched Nauplii dissected from eggs of E. sup
. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. Q b Fig. I. First Nauplius ( x 46). a, specimen dissected from egg; b, free-swimming specimen. Table IV. Occurrence of First Nauplius Station Date Depth m. Number Length mm. 537 539 19. xii. 30 19. xii. 30 750-500 250-100 I I 0-63 0-66 Of the two free-swimming larvae one measured 0-63 and the other o-66 mm. They were presumed to be E. superba from their relatively large size compared with other Nauplii in the plankton, from their similarity to nearly hatched Nauplii dissected from eggs of E. superba, and from their occurrence at stations containing recognizable eggs of this species. The body of the Nauplius is in dorsal aspect oval in shape, broader posteriorly than anteriorly (Fig. i b). It is in form a normal ist Nauplius with three pairs of swimming appendages. The first pair of limbs is uniramous with the two succeeding pairs biramous. SECOND NAUPLIUS All the 2nd Nauplii occurred at stations where eggs were present; because of this, but particularly on account of their large size, they were assumed to be E. superba. The average length of the 2nd Nauplius is 0-67 mm. with a range of from 0-63 to 0-70 mm. 3-2. 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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