34° DISCOVERY REPORTS 



LXii (2), p. 181 ; Giinther, i8S8, Pelagic Fish. 'Challenger', p. 25, pi. iii, figs. A-B; Goode and 



Bean, 1895, Ocean. Ichth. pp. 388, 531; Jordan and Evermann, 1898, Bull. U.S. Nat. Mus. 



XLVii (3), p. 2527 ; Alcock, 1899, Cat. Indian Deep-Sea Fish, p. 75 ; Weber, 1913, Fische ' Siboga '- 



Exped. p. 174; Gilchrist and Thompson, 1914, Ann. S. Afric. Mus. xiii, p. 87; igiy, Ann. 



Durban Mus. i, p. 320; Barnard, 1925, Ann. S. Afric. Mus. xxi, p. 325; Weber and Beaufort, 



1929, Fish. Indo-Austral. Arch. V, p. 6, fig. 2. 



Calloptilum minim, Richardson, 1845, Zool. Voyage ' Sulphur \ p. 95, pi. xlvi, figs. 4-7. 



Astheniirus atripinnis, Tickell, 1864, J. Asiat. Soc. Bengal, xxxiv (2), p. 32, fig. 



Bregmaceros atripinnis, Day, 1869, Proc. Zool. Soc. p. 522; 1877, Fish. India, p. 418, pi. xci, 



fig. I. 



Bregmaceros atlanticus, Goode and Bean, 1886, Bull. Mus. Comp. Zool. xii, p. 165; 1895, Ocean. 



Ichth. p. 388, fig. 331 ; Borodin, 1928, Bull. Vanderbilt Ocean. Mus. i (i), p. 13. 



Bregmaceros bathymaster, Jordan and Bollman, 1890, Proc. U.S. Nat. Mus. xii, p. 173. 



St. 277. 7. viii. 27. 1° 44' 00" S, 8° 38' 00" E. Young-fish trawl, 63 (-0) m. : 2 specimens, 43-45 mm. 

 St. 281. 12. viii. 27. 00° 46' 00" S, 5° 49' 15" E. Young-fish trawl, 850 m. : i specimen, 35 mm. 

 St. 284. 15. viii. 27. 2° 13' 00" S, 1° 52' 00" E. I m. tow-net, oblique, 71 -cm.: i specimen, 

 27 mm. 



II. xi. 25. 6° 55' N, 15° 54' W. 2 m. tow-net, horizontal, 800 (-0) m. : 2 specimens, 39-42 mm. 



Hub. Atlantic, Indian and Pacific Oceans. 



I have examined a fairly representative series of specimens of this species from several 

 localities, and am unable to detect any marked differences between those from the 

 Atlantic and Indo-Pacific respectively. There seems to be Httle doubt that B. atlanticus 

 is, at the most, a race of B. maclellandi. 



Melanonus gracilis, Giinther. 



Giinther, 1878, Ann. Mag. Nat. Hist. (5), 11, p. 19; 1887, Deep-Sea Fish. 'Challenger', p. 84, 

 pi. xiv, fig. B; Goode and Bean, 1895, Ocean. Ichth. p. 380, fig.; Brauer, 1906, ' Valdivia' 

 Tiefsee-Fische, p. 277, pi. xii, fig. 5. 



St. 72. I. vi. 26. 41° 43' 20" S, 42° 20' 40" W. 4^ m. net, horizontal, 2000 (-0) m. : i specimen, 

 140 mm. 



St. 86. 24. vi. 26. 33° 25' 00" S, 6° 31' 00" E. 4A m. net, horizontal, 1000 (-0) m. : 3 specimens, 

 50-70 mm. 



St. 100. 4. x. 26. 33° 20' 00" to 33° 46' 00" S, 15° 18' 00" to 15° 08' 00" E. Young-fish trawl, 

 2500 (-0) m. : I specimen, 67 mm. 



St. loi. 15. x. 26. 33° 50' to 34° 13' S, 16° 04' to 15° 49' E. 42 m. net, horizontal, 850-950 m. : 

 2 specimens, 67-72 mm. 



St. 239. 2. vi. 27. 46° 56' 00" S, 46° 03' 00" W. 42 m. net, horizontal, 1050-1350 (-0) m. : 3 

 specimens, 100-160 mm. 



St. 276. 5. viii. 27. 5° 54' 00" S, 11° 19' 00" E. Young-fish trawl, 150 (-0) m. : 3 specimens, 15- 

 47 mm. 



Depth of body 6J to 6| in the length, length of head 5^ to $\. Snout 3I to 3I in 

 length of head, diameter of eye 4 to 4!, interorbital width 2|. Maxillary extending to 

 below posterior border of eye or not quite as far; both jaws with narrow bands of minute 

 villiform teeth; similar teeth generally present on vomer, palatines and pterygoids. 



