. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes ⢠Baird 43. â igure 28. Argyropelecus hemlgymnus; R/V CHAIN, Cruise 60; Station 1299; SL 30 mm. 604; Handrick, 1901: system, light organs); 1 (anatomy, nervous Collett, 1903: 108; Ledenfeld, 1905: 170 (light organs); Braner, Regan, 1908: 218; (lai^vae, fig.); Ziig- and Byrne, 1913: 21 1906: 106 (larvae, fig.) Ehrenbaum, 1909: 357 mayer, 1911: 52; Holt (larvae, fig.); Jespersen, 1915: 6; Jespersen and Taning, 1919: 220 (lai-vae, eye muscles): Nusbaum-Hilarowicz, 1923: 10 (anatomy): Barnard, 1925:
. Bulletin of the Museum of Comparative Zoology at Harvard College. Zoology. Marine Hatchetfishes ⢠Baird 43. â igure 28. Argyropelecus hemlgymnus; R/V CHAIN, Cruise 60; Station 1299; SL 30 mm. 604; Handrick, 1901: system, light organs); 1 (anatomy, nervous Collett, 1903: 108; Ledenfeld, 1905: 170 (light organs); Braner, Regan, 1908: 218; (lai^vae, fig.); Ziig- and Byrne, 1913: 21 1906: 106 (larvae, fig.) Ehrenbaum, 1909: 357 mayer, 1911: 52; Holt (larvae, fig.); Jespersen, 1915: 6; Jespersen and Taning, 1919: 220 (lai-vae, eye muscles): Nusbaum-Hilarowicz, 1923: 10 (anatomy): Barnard, 1925: 153; Jespersen and Taning, 1926: 59; Sanzo, 1928: 50 (eggs, larvae), Norman, 1930: 301; Borodin, 1931: 44 (eggs, larvae); Jespersen, 1934: 15 (larvae, fig.): Buen, 1935: 52; Fowler, 1936: 1208; Beelie. 1937: 201; Parr, 1937: 49 (spines); Norman, 1937: 82; 1939: 19; Nybehn, 1948: 23; Maul, 1949b: 13; Misra, 1952: 367; Smith, 1953: 102; Kotthaus and Krefft, 1957: 3; Peres, 1958: 4 (bathyscaphe); Koefoed, 1961: 5; Schultz, 1961: 601; 1964: 241; Blache, 1964: 71; Backus et al., 1965: 139; Kotthaus, 1967: 22 (photo, otoliths); Bright and Paquegnat, 1969: 28. Argijropelccus d'uiviUi Valenciennes, in Cuviei and Valenciennes, 1849: 405; Goode and Bean, 1896: 127. \rp,\)vovelccus intermedins Clarke, 1878: 248; Schultz, 1961: 587; 1964: 241; Blache, 1964: 71; Berry and Perkins, 1965: 625; Kotthaus, 1967: 11 (photo.); Lavenberg and Ebeling, 1967: 185. Argyropelectis heathi Gilbert, 1905: 601; Fowler, 1949: 42; Haig, 1955: 321. ' Species distinction. Differs from all other species in genus by its narrow trunk, single postabdominal spine, small size, minute teeth, presence of only eight dorsal and eleven anal rays. Description. D. 8; A. 11; P. 10-11; total gill rakers (18) 19-23 (24); vertebrae (36) 37-38. Dwarf species rarely exceeding 38 mm SL; trunk very long and narrow; its depth at origin of anal photophores three or more times into greatest body depth, subcaudal photophores well se
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