. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. STRUCTURE AND SYSTEMATICS 67 Varying degrees of adipose tissue investment have been found around the swimbladders of adults of the hatchet fish, Polyipnus laternatus. This is shown in Text-fig. 35. The top drawing represents a swimbladder from a 32-5-mm. fish and the sac has a relatively thin layer of fat around it. The middle and lower swimbladders came from 26-5 and 33-5-mm. fishes. In these the swimbladder is buried in a mass of fat, the outline of which has some congruence to that of the sac
. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. STRUCTURE AND SYSTEMATICS 67 Varying degrees of adipose tissue investment have been found around the swimbladders of adults of the hatchet fish, Polyipnus laternatus. This is shown in Text-fig. 35. The top drawing represents a swimbladder from a 32-5-mm. fish and the sac has a relatively thin layer of fat around it. The middle and lower swimbladders came from 26-5 and 33-5-mm. fishes. In these the swimbladder is buried in a mass of fat, the outline of which has some congruence to that of the sac. As in Cyclothone, the fat was surrounded by darkly pigmented Text-fig. 34. Cross-sections through the fat-invested swimbladder of Cyclothone livida. On the left is shown the reticular fat-charged tissue surrounding the regressed swimbladder, which is shown enlarged on the right and has a diameter of about 300//. crm, remains of capillaries of rete mirabile; pp, pigmented peritoneum; rft, reticular fatty-tissue; rsb, regressed swim- bladder ; rgg, regressed gas-gland cells; sm, submucosa; te, tunica 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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