OSTRACODA—CHAPMAN., 21 
Observations.—It is with much interest that we meet with this rare species amongst 
the present soundings. It previously occurred off Pernambuco, Brazil, in 675 fathoms ; 
off the coast of Patagonia, 160 fathoms; and off Ascension Island in 420 fathoms. 
Occurrence—No. 59 (12th December, 1912), 1,320 fathoms, east of Tasmania; 
one example. 
Genus Bytuocyeris G. S. Brady. 
Bytuocyeris Bosquretiana G. S. Brady sp. 
Bairdia bosquetiana G. 8. Brady, 1865, Trans. Zool. Soc. Lond., vol. V, p. 364, 
pl. LVII, figs. 5a-c. 
Bythocypris reniformis G. 8. Brady, 1880, Rep. Chall. Zool., vol. I, pt. III, p. 46, 
pl. V, figs. 1a-l. 
Bythocypris bosquetiana G. 8. Brady sp., Brady and Norman, 1889, Trans. 
Roy. Dubl. Soc., ser. 2, vol. IV, No. II, p. 120, pl. XIV, figs. 34, 35. 
Observations—A single left valve of this widely distributed species occurs in a 
sounding close to the Ice Barrier. 
Occurrence.—No. 31 (15th February, 1912), 220 fathoms. 
(?) ByrHocypris compressa G. S. Brady. 
(?) Bythocypris compressa G. 8. Brady, 1880, Rep. Chall. Zool. vol. 1, pt. HI, 
p: 46, pl. XXXV, figs. 5a-d. 
Observations —The shape of the carapace recalls B. sollasi*, but is not so high 
in the middle, nor so attenuate posteriorly. It is nearest the above species, which was 
obtained in shallow water off Tongatabu, South Pacific. Two valves (right 
and left). 
Occurrence.—No. 139 (27th January, 1914), 328 fathoms. 
Family BATRDITD. 
Genus Barrpia McCoy. 
BarrDIA ABYSSICOLA G. S. Brady, Plate XXI, fig. 6. 
Bairdia abyssicola G. S. Brady, 1880, Rep. Chall. Zool., vol. I, pt. III, p. 52, 
pl. VII, figs. 4a-c. 
Several well-developed valves of the above species occur. There is also an 
immature form which exactly resembles the adult, and therefore does not appear to 
support Dr. G. 8. Brady’s suggestion that B. abyssicola may be only the fully developed 
stage of B. minima’. Previously recorded in the North Pacific in 2,050 fathoms. 
Occurrence.—Additional sample (3rd September, 1912), 706 fathoms. No. 11 
(13th November, 1912), 1,475 fathoms. No. 59 (12th December, 1912), 1,820 fathoms. 
No. 60 (12th December, 1912), 1,300 fathoms. 
1Chapman, Journ. Linn. Soc. Lond. Zool., vol. XXX, 1910, p. 428, pl. LVI, figs. 19a-¢ 
*See Rep. Chall, Zool., vol. I, pt. II, 1880 p. 53. : 
