. Text-fig. 26. Swimbladder of Stephanoberyx monae, seen (a) from above. In (b) is shown the blood supply to the right lobe of the gas-gland, cl, capillary hop; gg, gas-gland; ov, oval; rm, rete mirabile. (a, x 5-5; b, x 17.) Order BERYCOMORPHI Family Stephanoberycidae Stephanoberyx monae Gill (Text-fig. 26) Oregon St. 1426 (290 07' N., 870 54' W.), 24. ix. 57, 600 fathoms, trawl. Standard length 83-5 mm. (16-0 x 8-o mm.). The swimbladder of this species is ellipsoidal in form and extends down most of the length of the upper part of the body-cavity. The blood supply for the retia enters the fl
. Text-fig. 26. Swimbladder of Stephanoberyx monae, seen (a) from above. In (b) is shown the blood supply to the right lobe of the gas-gland, cl, capillary hop; gg, gas-gland; ov, oval; rm, rete mirabile. (a, x 5-5; b, x 17.) Order BERYCOMORPHI Family Stephanoberycidae Stephanoberyx monae Gill (Text-fig. 26) Oregon St. 1426 (290 07' N., 870 54' W.), 24. ix. 57, 600 fathoms, trawl. Standard length 83-5 mm. (16-0 x 8-o mm.). The swimbladder of this species is ellipsoidal in form and extends down most of the length of the upper part of the body-cavity. The blood supply for the retia enters the floor of the sac close to its posterior end. The artery and vein form two long retia mirabilia (about 8 mm. in length). In the fish dissected the retia were dis- placed in position, but presumably extend forward along the swimbladder floor. Each rete runs to a corresponding lobe of the gas-gland, where the capillaries form loops running through the secretory tissue. The retia are thus unipolar in structure. Immediately above this point of entry of the retial blood supply there is an oval on the roof of the sac. This measured about 5 mm. in diameter and was partly closed. The capillary network of this resorbent structure was plainly visible under the high power of a binocular microscope.
Size: 2671px × 1872px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti
