OSTRACODA—CHAPMAN, 19 
PONTOCYPRIS TRIGONELLA G. O. Sars. 
Pontocypris trigonella G. O. Sars, 1865, Oversigt af Norges Marine Ostracoder, 
p- 16. G. 8. Brady, 1868, Trans. Linn. Soc. Lond., vol. XXVI, p- 387, pl. XXV, figs. 
31-34; pl. XXVII, fig. 3. Brady, Crosskey, and Robertson, 1874, Mon. Post-tert. 
Entom. Scotland, &c. (Pal. Soc. Mon.), p. 137, pl. XVI, figs. 26-28. G. S. Brady, 1880, 
Rep. Chall. Zool., vol. I, pt. III, p. 36, pl. XV, figs. 4a-d. Brady and Norman, 1889, 
Sci. Trans. Roy. Dubl. Soc., ser. IT, vol. IV, No. 2, p. 109, pl. XXII, figs. 18-25, pl. 
XXIII, fig. 6. Egger, 1901, Abhandl. d. k. bayer. Akad. Wiss., Cl. II, vol. XX, pt. I, 
p- 422, pl. I, figs. 16, 17. Chapman, 1910, Journ. Linn. Soc. Lond. Zool., vol. XXX, 
p. 426. Idem, 1915, Sci. Results “ Endeavour,” vol. III, pt. I, je Bis, 
Observations —This species seems to be more at home in the North Atlantic. 
The Funafuti occurrence, at a depth of 1,485 fathoms, a record for this is usually 
moderately shallow water species. The present occurrence however, nearly approaches 
it in this respect. Only a single left valve was found. 
Occurrence.—No. 60 (12th December, 1912), 1,300 fathoms. 
Genus Arcittacta G. O. Sars. 
ARGILL@CIA AFFINIS Chapman. Plate XXT, figs. 3, 3a. 
Argillecia affims Chapman, 1902, Journ. Linn. Soc. Lond. Zool., vol. XXVIII, 
p- 419, pl. XXXVI, figs. la-c. Idem, 1910, ibid., vol. XXX, p. 428. 
Observations.—At Funafuti this species was found in depths varying from 1,050 
to 2,715 fathoms. It differs from A. eburnea G. 8. Brady in the more distinct parallelism 
of the upper and lower margins of the valves. . 
Occurrence.—No. 28 (14th February, 1912), 160 fathoms. No. 58 (11th December, 
1912), 1,180 fathoms. | 
ARGILL@CIA BADIA G. 8. Brady. 
Argillecia badia G. 8. Brady, 1880, Rep. Chall. Zool., vol, I, pt. II, p. 40, pl. VI, 
figs. 3a-d. Kgger, 1901, Abhandl. d.k. bayer. Ak. Wiss., vol. XXI, pt. I, p. 422, pl. IV, 
figs, 6, 7. Chapman, 1914, Proc. R. Soc. Vict., vol. XXVII (N.S.), pt. I, p. 28, pl. VI 
fig. 1. 
Observations.—This is a moderately deep to shallow water species, and seems.to 
be confined to the Australian sector, having previously occurred off Queensland, W. 
Australia, and New South Wales. The writer obtained fossil specimens from the J anj ukian 
of the Mallee Bores, which shows it to have been a denizen of Australian Seas in 
Miocene times. A single right valve was found. 
Oceurrence—No. 31 (15th February, 1912), 200 fathoms, 
