254 
Transactions of the Society, 
Gesell., vol. xvii. p. 27. pi. v. fig. 22. R. fusiformis (Will.) Chapman, 
1892, Journ. R. Micr. Soc., p. 320, pi. v. fig. 3. 
The specimens are large, and the test is formed of very coarse 
grains of sand ; most of them have the small initial chamber which 
marks the transition to R. scorpiurus. It is tolerably plentiful, but 
the range is rather restricted. 
Reophax scorpiurus Montfort. 
R. scorpiurus Montfort, 1808, Conch. Syst., vol. i. p. 331, 
83 e genre. R. scorpiurus (Montf.) Balkwill and Wright, 1885, 
Trans. R. Irish Acad., vol. xxviii. (Sci.) p. 328, pi. xiii. fig. 5. 
R. scorpiurus (Montf.) Haeusler, 1885, Neues Jahrb. fiir Min., 
Beil.-Bd., iv. Heft 1, p. 9, pi. i. figs. 14, 15. R. scorpiurus (Montf.) 
Brady, Parker, and Jones, 1888, Trans. Zool. Soc., vol. xii. p. 217, 
pi. xli. fig. 10. R. scorpiurus (Montf.) Balkwill and Wright, 1885, 
Trans. R. Irish Acad., vol. xxviii. (Sci.) p. 328, pi. xiii. fig. 5. R. 
scorpiurus (Montf.) Haeusler, 1890, Abhandl. schweiz. palaont. 
Gesell., vol. xvii. p. 27, pi. v. figs. 23, 24. R. scorpiurus (Montf.) 
Chapman, 1892, Journ. R. Micr. Soc., p. 320, pi. v. figs. 4, 5. 
R. scorpiurus (Montf.) Egger, 1893, Abhandl. k. bayer. Akad. Wiss., 
Cl. II., vol. xviii. p. 257, pi. iv. fig. 18 and pi. v. figs. 45, 46. R. 
scorpiurus (Montf.) Goes, 1894, K. Svenska Yet.-Akad. Hand!, 
vol. xxv. p. 24, pi. v. figs. 158-169. 
Most of the specimens have the test composed of rough grains of 
sand, but in a few it is built up of thin flakes derived from organisms 
of various kinds. The figures by Goes, above referred to, show well 
the relationship of this form with R. fusiformis . 
It is common, and widely distributed. 
Reophax bacillaris Brady, plate IY. fig. 12. 
R. bacillaris Brady, 1881, Quart. Journ. Micr. Sci., vol. xxi. n.s. 
p. 49. R. bacillaris Brady, 1894, Chalk Rept., p. 293, pi. xxx. 
figs. 23, 24. R. bacillaris (Brady) de Amicis, 1895, Naturalista 
Siciliana, anno xiv. p. 72, pi. i. fig. 17. R. bacillaris (Brady) Goes, 
1896, Bull. Mus. Comp. Zook Harvard Colk, vol. xxix. p. 27. 
A rare deep-water species, represented by a very few examples 
from Stations 5 and 6. The specimens are, however, highly charac- 
teristic. 
Found at only one ‘ Challenger 5 Station, on the north coast of 
Papua, 1070 fathoms. Goes reports it from the Pacific, 1132-1201 
fathoms. 
Reophax dentaliniformis Brady. 
R. dentaliniformis Brady, 1881, Quart. Journ. Micr. Sci., vol. xxi. 
n.s. p. 49. R. dentaliniformis Brady, 1884, Chalk Rept., p. 293, 
pi. xxx. figs. 21, 22. R. dentaliniformis (Brady) Goes, 1894, 
