THE FOKAMINIFERA OF LORD HOWE ISLAND. 603 
8. BiLOCQLiNA ELONGATA d'OrUgny. 
Bilocidina elongata d'Orbigny,1826, TMC. p. 298, no. 4. 
„ Brady, 1884, FC. p. 144, pi. 2. fig-. 9. 
„ „ Heron-Allcii & Earlaiid, 1913, CI. p. 22, pi. 1. fig. 4. 
Very rare, but fairly typical. 
9. BiLOCULiNA opposiTA Deskayes. 
Bilocidina o^jjjosito. Deshayes, 1831, COT. p. 252, pi. 3. figs. 8-10. 
„ Bronn, 1837, LG. p. 1143, pi. 42. fig. 30. 
(Eucycl. Methodique, vol. ii. p. 138, fide Bronn.) 
„ ohlonga d'Orbigny, 1839, FC. p. 163, pi. 8. figs. 21-23. 
Three small but distinctive specimens which agree remarkably well with 
Desha} es' figures, except as regurds the tooth, which is not strongly furcate 
as in his specimens, but less prominent as in d'Orbigny's B. ohlonga, which ■ 
is, in other respects, identical with Deshayes'' earlier figure. This form may 
be regarded as an abbreviated and inflated variety of B. elongata. 
Spiroloculina d^Orbigny. 
10. Spiroloculina antillaeum d'thiigny. 
i^piroloadi'ua untillarum d'Orbigny, 1839, FC. p. 166, pi. 9. tigs. 3, 4. 
Brady, 1884, FC. p. 155, pi. 10. fig. 21. 
Heron-Allen & Earland, 1908, etc., SB. 1911, p. 301. 
Abundant. One of the most typical forms in the gathering. The final 
pair of chambers is usually so turgid as almost to enclose all the preceding 
chambers. 
11. Spiroloculika canalicvlata d'Orbigny. 
Spirolocidina canalicidata d'Orbigny, 1846, FFV. p. 269, pi. 16. figs. 10-12. 
„ „ Jones, Parker, & Brady, 1866, etc., MCF. p. 16 
pi. 3. figs. 39, 40. 
Cushman, 1921, FP. p. 395, pi. 80. fig. 3. 
Very rare and weak, and exhibiting a tendency to separation of the 
chambers, so as to leave lacunse between the adjacent chambers, as in 
iS. acutimargo Brady. 
12. Spiroloculina planulata (Lamarck). 
Miliolites planulata Lamarck, 1804, AM. p. 352, no. 4. 
Spiroloculina „ Brady, 1884, FC. p. 148, pi. 9. fig. 11. 
„ Heron- Allen & Earland, 1914-15, FKA. p. 555. 
A single large specimen which on one side is plane and on the other feebly 
costate, a variation referred to in FKA. (nt tuijira). 
