. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. 374 DISCOVERY REPORTS Third calyptopis. Eleven specimens examined (Fig. 240, b). Length range 2-4-2-9 mm.; average length 2*7 mm. The carapace is unchanged except for the appearance of the rudiments of the dorsal crest. The inferior margin is smooth. The compound eyes are globular and pigmented. The basal segment of the first antennal peduncle bears a strong toothed spine on its outer, distal margin. This reaches to about the middle of the last peduncular 0-25mm Fig. 24. Nematoscelis m
. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. 374 DISCOVERY REPORTS Third calyptopis. Eleven specimens examined (Fig. 240, b). Length range 2-4-2-9 mm.; average length 2*7 mm. The carapace is unchanged except for the appearance of the rudiments of the dorsal crest. The inferior margin is smooth. The compound eyes are globular and pigmented. The basal segment of the first antennal peduncle bears a strong toothed spine on its outer, distal margin. This reaches to about the middle of the last peduncular 0-25mm Fig. 24. Nematoscelis megalops. a, third calyptopis, lateral view; b, telson and uropods. The second antennae and thoracic appendages have not changed. There are now six abdominal segments and a telson. The abdomen bears no appendages. The lateral uropods of the telson are now developed and spinose. The outer ramus of the uropod is somewhat longer than the inner and its outer margin is produced as a small, strong tooth. The remaining armature of the telson is unchanged. A dorsal view of this stage can be seen in Frost (1935), and is, therefore, not figured here. She does not, however, indicate the small, smooth projection on the posterior margin of the carapace. This can be seen even in lateral 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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