. Text-fig. ii. Swimbladder of Astronesthes niger, seen (a) in fish; (b) laterally, and (c) ventrally. Veins shown black, arteries white, av, artery-vein pair to gas-gland; bpr, by-pass branch of retial artery; gg, gas-gland; k, kidney; ra, retial artery; rv, retial vein; rm, rete mirabile. (a, x 2; b, x 8; c, x )

---

Size: 1757px × 2844px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti