288 DISCOVERY REPORTS 



Cyclothone microdon pallida, Brauer. 



Brauer, 1902, Zool. Anz. xxv, p. 281 ; 1906, ' Valdivia' Tiefsee-Fische, p. 84, pi. vi, fig. 2, text- 

 fig. 33; Zugmayer, 191 1, Res. Camp. Sci. Monaco, xxxv, p. 44, pi. 11, fig. 3. 



Hab. Atlantic and Indian Oceans. 



Cyclothone microdon pygmaea, Jespersen arid Taning. 



Jespersen and Taning, 1926, Rep. Danish Ocean. Exped. 1908-10, 11, A, 12, p. 7, figs. 

 Hab. Mediterranean and neighbouring parts of the Atlantic. 



Cyclothone acclinidens, Garman. 



Garman, 1899, Mem. Mus. Comp. Zool. xxiv, p. 247, pi. J, fig. 4; Brauer, 1906, 'Valdivia' 

 Tiefsee-Fische, p. 85, pi. vi, fig. i, text-fig. 34. 



Hab. Atlantic and Indian Oceans; Pacific. 



Cyclothone atraria, Gilbert. 



Gilbert, 1905, Btdl. U.S. Fish. Comm. xxiii (1903), p. 605, pi. Ixxii, fig. 2. 

 Hab. Hawaiian Islands. 



Cyclothone canina, Gilbert. 



Gilbert, 1905, t.c. p. 604, pi. Ixxi, fig. 2. 

 Hab. Hawaiian Islands. 



Cyclothone obscura, Brauer. 



Brauer, 1902, Zool. Anz. xxv, p. 280; 1906, ' Valdivia' Tiefsee-Fische, p. 88, pi. vi, fig. 3, text- 

 fig- 35- 



St. 295. 25. viii. 27. 5° 30' 30" N, 17° 45' 00" W. Young-fish trawl, 2500-2700 (-0) m. : 5 

 specimens, 25-60 mm. (?). 



Hab. Atlantic and Indian Oceans. 



Genus Yarrella, Goode and Bean 



Goode and Bean, 1895, Ocean. Ichth, p. 103. 



Polymetme, McCulloch, 1926, Biol. Res. 'Endeavour', v, p. 166. 



Close to Gonostoma, but whole of body covered with deciduous scales. Photophores 

 conspicuous. Dorsal 10-12. Anal 23-32; origin belowmiddle orposterior part of dorsal. 

 Two species. 



Yarrella blackJordi, Goode and Bean. 



Goode and Bean, 1895, Ocean. Ichth. p. 103, fig. 121 ; Jordan and Evermann, 1896, Bull. U.S. 

 Nat. Mus. XLvn (i), p. 584, fig. 249; Jespersen and Taning, 1919, Vid. Medd. Dansk nat. For. 

 LXX, p. 223, pi. xvii, fig. 13. 



