304 



DISCOVERY REPORTS 



Argyropelecus olfersii (Cuvier).^ 



Sternoptyx olfersii, Cuvier, 1829, R. Anim. ed. 2, 11, p. 316. 



Argyropelecus olfersii, Cuvier and Valenciennes, 1850, Hist. Nat. Poiss. xxii, p. 408; Brauer, 



1906, ' Valdivia' Tiefsee-Fische, p. 108, fig. 46; Regan, 1908, Trans. Linn. Soc. Zool. xii, p. 219; 



Zugmayer, 191 1, Res. Camp. Sci. Monaco, xxxv, p. 52; Holt and Byrne, i()it„ Fisheries, Ireland, 



Sci. Invest. 1912, i, p. 20, fig. 7a; Weber and Beaufort, 1913, Fish. Indo-Aiistral. Arch. 11, 



p. 134, fig. 49; Jespersen, 1915, Rep. Danish Ocean. Exped. 1908-10, 11, A, 2, p. 23; Roule, 



1919, Res. Camp. Sci. Monaco, Lii, p. 25; Barnard, 1925, Ann. S. Afric. Mus. xxi, p. 153. 



Pleurothyris olfersi, Lowe, 1843, Hist. Fish. Madeira, p. 64. 



? Argyropelecus lyclmus, Garmaq, 1899, Mem. Mus. Comp. Zool. xxiv, p. 234, pi. J, fig. i. 



St. 281. 12. viii. 27. 00° 46' 00" S, 5° 49' 15" E. Young-fish trawl, 850-950 (-0) m. : i specimen, 

 22 mm. ? 



Hah. Atlantic; Indian Ocean; Pacific coast of Central America (?). 



Fig. 1 1 . Argyropelecus aculeatiis. 

 Young example, (x 2J.) 



Fig. 12. Argyropelecus olfersii. 

 Young example, (x 2.) 



Argyropelecus sladeni, Regan. 



Regan, 1908, Trans. Linn. Soc. Zool. xii, p. 218. C T 



FoS- i^<vW -^ • 

 St. 170. 23. n. 27. Off Cape Bowles, Clarence Island, 61° 25' 30" S, 53° 46' 00" W. Young-fish 

 trawl, 200 (-0) m. : i specimen, 26 mm. 



St. 269. 26. vii. 27. 15° 55' 00" S, 10° 35' 00" E. 4|- m. net, horizontal, 600-700 (-0) m. : 3 

 specimens, 23-28 mm. 



St. 276. 5. viii. 27. 5° 54' 00" S, 11° 19' 00" E. Young-fish trawl, i5o(-o)m. : i specimen, 

 25 mm. 



St. 285. 16. viii. 27. 2° 43' 30" S, 00° 56' 30" W 4J m. net, horizontal, 125-175 (-0) m.: 32 

 specimens, 8-27 mm. 



St. 288. 21. viii. 27. 00° 56' 00" S, 14° 08' 30" W. Young-fish trawl, 250 (-0) m. : 7 specimens, 

 14-25 mm. 



St. 297. 28. viii. 27. 12° 08' 00" N, 20° 53' 30" W. Young-fish trawl, 200-300 (-0) m. : i 

 specimen, 15 mm. 



The young and half-grown specimens of this species are often difficult to distinguish 

 from those of A. olfersii. If specimens of equal size are compared, however, it will be 



^ For full synonymy of this species see Brauer (1906). Some of the references may refer to A. sladeni. 



