‘ OSTRACODA—CHAPMAN. 39 
Observations.—The present examples came from opposite Kaiser Wilhelm I 
Land. The type specimens were dredged in Balfour Bay, Kerguelen Island (G. S. 
Brady), and others came from the Ross Sea, in 153 fathoms (F. Chapman). 
Occurrence.—No. 28 (14th February, 1912), 160 fathoms. 
CYTHERURA RUDIS GC. S. Brady. 
Cytherura rudis G. 8. Brady, 1868, Ann. Mag. Nat. Hist., ser. 4, vol. II, p. 34, 
pl. V, figs. 15-17. 
Cytherura (?) rudis G. 8. Brady, 1880, Rep. Chall. Zool., vol. I, pt. III, p. 182, 
pl. XXXII, figs. 3a-d. 
Cytherura rudis Brady and Norman, 1889, Trans. R. Dubl. Soc., ser. 2, vol. IV, 
p. 204, pl. XVIII, figs. 10-12; pl. XIX, fig. 21. Chapman, 1916, Brit. Ant. Exped., 
‘1907-9, Geol., vol. I, p. 74, pl. VI, fig. 51. 
Observations—This species has a wide distribution and also occurs in 
Pleistocene deposits in the United States and in Scotland. It was met with ‘n the 
Ross Sea in 225 fathoms. The present localities are—west of Tasmania and off Adelie 
Land. 
Occurrence.—No. 59 (12th December, 1912), 1,320 fathoms. No. 139 (27th 
January, 1914), 328 fathoms. 
Genus CyTHEROPTERON G. O. Sars. 
CYTHEROPTERON ABYsSoRUM G. S. Brady. 
Cytheropteron abyssorum G. 8. Brady, 1880, Rep. Chall. Zool., vol. I, pt II, 
p. 138, pl. XXXIV, figs. 3a-d. Chapman, 1910, Journ. Linn. Soc. Lond. Zool., vol. 
XXX, p. 437. Idem, 1915, Sci. Res. “ Endeavour,” vol. II, pt. I, p. 47. 
Observations.—This species has been found in deep sea soundings south-west of 
‘Tasmania (“Challenger”) and at Funafuti (“ Penguin”). Also found east of Tas- 
mania in 777 and 1,122 fathoms (“ Endeavour ”’). 
In the present samples C. abyssorum occurs in grey muds from the neighbourhood 
of the Ice-barrier and also west of Tasmania. 
Occurrence —N. 20 (9th February, 1912), 110 fathoms. No. 29 (14th February, 
1912), 125 fathoms. No. 42 (5th December, 1912), 1,076 fathoms. No. 59 (12th 
December, 1912), 1,320 fathoms. No. 60 (12th December, 1912), 1,300 fathoms. 
No. 139 (27th January, 1914), 328 fathoms. 
CYTHEROPTERON ANTARCTICUM Chapman. 
Cytheropteron antarcticum Chapman, 1916, Brit. Ant. Exped. 1907-9, Geol., 
vol. II, p. 38, pl. LV, figs. 4a, b. 
Observations—This species was originally described from fossil specimens in the 
upthrust muds ‘of the Drygalski Glacier, south-east of Mount Larsen. The present 
occurrences are from a locality 142 miles south-west of St. Frances Island, South 
