. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. PELAGIC AND BENTHIC FISHES, SWIMBLADDER, ECONOMY OF DEEP-SEA LIFE 105 Table 8. The relative developments of tissue in two assemblages of bathypelagic fishes Lyomeri and Ceratoidea1 Gonostomatidae (most species), Sternoptychidae, Astronesthes spp. Myctophidae (most species) Vertical range Swimbladder Skeleton 200-1000 m. Present Well formed and mod Musculature Eyes Well developed Large Light organs Highly developed Brain Gill-system Large, well developed Well developed 1000-4000 m. Absent Reduced
. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. PELAGIC AND BENTHIC FISHES, SWIMBLADDER, ECONOMY OF DEEP-SEA LIFE 105 Table 8. The relative developments of tissue in two assemblages of bathypelagic fishes Lyomeri and Ceratoidea1 Gonostomatidae (most species), Sternoptychidae, Astronesthes spp. Myctophidae (most species) Vertical range Swimbladder Skeleton 200-1000 m. Present Well formed and mod Musculature Eyes Well developed Large Light organs Highly developed Brain Gill-system Large, well developed Well developed 1000-4000 m. Absent Reduced, particularly in Lyomeri and poorly ossified Reduced, particularly in Lyomeri Relatively small (except in certain male cera- tioids) Present only on female ceratioids and on tail of Lyomeri Small Much reduced. 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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