612 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 112 



to 3 anal photophores; supra-abdominal photophores not in line with 

 preanal and anal groups; ventral line of abdominal keel usually with 

 a concave notch just in front of anterior postabdominal spine. 



Description: Counts made are given in table 1, p. 591, and table 

 2, p. 592, the measurements made are given in table 3, p. 593. Great- 

 est depth of pigmented part of body 1.2 to 1.4 and height of dorsal 

 blade 7.5 to 9.5 times, both in postorbital length of body. 



Range: This species is distributed in the Atlantic, Pacific, and 

 Indian Oceans and occurs at depths of 1,000 fathoms (Beebe, 1929) 

 and as far north in the Atlantic as lat. 52°20' N., (Bertelsen and 

 Gr0ntved, 1949). 



Argyropelecus lynchns lynchus Carman 

 Figure 11 



Argyropelecus lynchus Garman, Mem. Mus. Comp. Zool, vol. 24, p. 234, pi. J, 

 figs. 1, lb, 1899 (type locality, East Pacific, Panama Bay; lectotype USNM 

 57885).— Ledenfeld, Mem. Mus. Comp. Zool., vol. 30, No. 2, p. 170, pi. 6, 

 figs. 24, 25, 1905 (anatomy light organs). — Vanderbilt, To Galapagos on the 

 Ara, p. 132, pi. 5 (in color), 1927 (off Panama in Pacific, 300 fathoms). — Parr, 

 Bull. Bingham Oceanogr. Coll., vol. 2, art. 4, p. 17, fig. 5, 1931 (Atlantic). 



Argyropelecus sladeni, Norman, Discovery reports, vol. 2, p. 305, fig. 13, 1930 

 (Atlantic Ocean). — Jordan, Evermann and Clark, Report U.S. Comm. Fish 

 1928, pt. 2, p. 74, 1930 (name only). — Beebe, Bull. Inst. Oceanogr. Monaco, 

 No. 629, p. 4, 1933 (off Bermuda, 200 to 400 fathoms) .—Fowler, Bull. Amer. 

 Mus. Nat. Hist., vol. 70, pt. 2, p. 1207, 1936 (after Norman) .—Parr, Bull. 

 Bingham Oceanogr. Coll., vol. 3, art. 7, pp. 46-51, figs. 18-20, 1937 (no lo- 

 cality given) .— Schultz (in part), Proc. U.S. Nat. Mus., vol. 86, p. 153, 1938 

 (East Pacific).— Marr, Copeia, No. 2, p. 140, 1948 (lat. 32° 12' N., long. 

 118°37' W., depth 190 to 210 meters). 



Argyropelecus lichnus Ulrey, Journ. Pan.-Pacific Res. Inst., vol. 4, No. 4, p. 3, 1929 

 (error for lynchus; off California). — Terron, Ann. Inst. Biol. Univ. Nac. 

 Mexico, p. 76, 1932 (on Ulrey). 



Argyropelecus d'urvillei, Bertin, Bull. Mus. Nat. Hist. Nat. Paris, vol. 12, No. 6, 

 p. 314, 1940 (holotype A. d'urvillei Cuvier and Valenciennes, from Atlantic). 



Argyropelacus lynchnus (misspelled), Nichols and Murphy, Bull. Amer. Mus. Nat. 

 Hist., vol. 83, p. 235, 1944 (lat. 4°01' N., long. 80°26' W.). 



Argyropelecus olfersi, Clemens and Wilby, Fishes of the Pacific Coast of Canada, 

 Fish. Res. Board Canada, Bull, No. 67, p. 106, fig. 54, 1949 (British Columbia). 



Study material: The following type specimens were examined*" 

 USNM 57885, lectotype, Albatross station 3360, lat. 6°17' N., long- 

 82°5' W., depth 1,672 fathoms, standard length 46 mm. USNM 

 120239, paratype, Albatross station 3410, lat. 6°19' N., long. 90°34' 

 W., depth 331 fathoms, standard length 21 mm. USNM 120240, 

 paratype, Albatross station 3383, lat. 7°21' N., long. 79°2' W., depth 

 1,832 fathoms, standard length 30 mm. USNM 120241, paratype, 

 Albatross station 3395, lat. 7°30'36" N., long. 78°39' W., 730 fathoms, 

 32 mm. USNM 170966, paratype, Albatross station 3392, lat. 7°5'30" 



