. Text-fig. 35. Different degrees of fat-investment of the swimbladder of Polyipnus laternatus. The top swimbladder ( x 7-5), showing the least degree of investment, is from a fish of standard length 32-5 mm. The middle one ( x 8) comes from a 26-5-mm. fish, while the bottom one ( x 6) is from a 33-5-1™™. specimen, ft, fatty investment of swimbladder; gg, gas-gland; pp, pigmented peritoneum; rm, rete mirabile; sbw, swimbladder wall. 9-2

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Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti