Discovery reports (1940) Discovery reports discoveryreports18inst Year: 1940 BATHYDRACONIDAE 6i In addition to the 2 specimens listed above, the description includes 4 examples (98 to 195 mm.) obtained by the Antarctic Research Expedition. It seems possible that this species will prove to be identical with R. glacialis, but, as described by DoUo, the latter has fewer dorsal and anal rays, a more slender body, and a rather longer snout. It may be noticed that the intense black spot on the upper edge of the caudal fin characteristic of this species is shown by DoUo in his figure of th
Discovery reports (1940) Discovery reports discoveryreports18inst Year: 1940 BATHYDRACONIDAE 6i In addition to the 2 specimens listed above, the description includes 4 examples (98 to 195 mm.) obtained by the Antarctic Research Expedition. It seems possible that this species will prove to be identical with R. glacialis, but, as described by DoUo, the latter has fewer dorsal and anal rays, a more slender body, and a rather longer snout. It may be noticed that the intense black spot on the upper edge of the caudal fin characteristic of this species is shown by DoUo in his figure of the type of R. glacialis. Fig. 36. Racovitsia harrissoni. x|. Genus PRIONODRACO Prionodraco, Regan, 1914, Ann. Mag. Nat. Hist., (8) xni, p. 13; 1914, Rep. Brit. Antarct. {'Terra Nova') Exped. 1910, Zool. i (i), p. 10. Type Prionodraco evansii, Regan. Body elongate, compressed, quadrangular, with a series of V-shaped, serrated, bony plates at each angle; each plate with a backwardly directed spine; lower series of plates ending in a group of nearly normal serrated scales behind pectoral fin; usually a series of similar scales along middle of side; body otherwise naked. Lateral line single, in- complete. Snout spatulate; mouth slightly protractile; teeth small, villiform, in bands. Operculum hooked upwards posteriorly, its upper edge deeply concave; gill-membranes narrowly united to the isthmus anteriorly. Vertebrae 50 (16 + 34). A single species. Coasts of the Antarctic Continent. Prionodraco evansii, Regan. Prionodraco evansii, Regan, 1914, , p. 13; 1914, , p. 10, pi. vii, fig. i; Waite, 1916, Austral. Antarct. Exped. Sci. Rep., Ser. C, ni (i), Fishes, p. 35; Norman, 1937, Rep. Antarct. Res. Exped., Ser. B, i, p. 75. St. 167. 20. ii. 27. Off Signy Island, South Orkneys. Net (7 mm. mesh) attached to back of trawl, 244-344 '•- 3° specimens, 65-162 mm. Depth of body 7 to 8 in the length, length of head 3 to 3|. Snout as long as or a little longer than eye, diame
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