290 F. CHAPMAN. 
The test in this species is thicker than in C. monticularis,’ 
and, unlike C. utricularis,” has a smooth exterior. From 
C. raphidodrendon*® it is separated by its non-rambling 
habit, showing a tendency rather to connect Rupertia 
stabilis* with Carpenteria proteiformis.°* 
Sections of Le pidocyclina limestone from Triomoté Island, 
Loo Choo Islands, show the rock to contain numerous 
remains of Carpenteria which Messrs. Newton and Holland® 
have compared in one instance with the above species, C. 
capitata. 
The Christmas Island specimen measures 6 mm. in height, 
whilst the largest specimen in the present limestone sample 
is 2°55 mm. Several specimens occur in the limestone 
sections examined. 
Genus ROTALIA, Lamarck. 
ROTALIA CALCAR, d’Orbigny sp. 
Calearina calear, d’Orbigny, 1826, Ann. Sci. Nat., Vol. v1, 
p. 276, No.1; Modele, No. 34. Idem, 1839, Foram. 
Cuba, p. 93, pl. v, figs. 22 — 24. 
1 ©. monticularis, Carter, Ann. Mag. Nat. Hist., Ser. 4, Vol. x1x, 1877, 
p. 211, pl. xiii. Brady, Rep. Chall. Vol. 1x, 1884, p. 677, pl. xcix, figs. 1 - 5. 
Chapman, Journ. Linn. Soc. Lond., Zool., Vol. xxv111, 1900, p. 14, pl. ii, 
fic. 5; pl. iv, figs. 5, 6. 
2 Polytrema utricularis, Carter, Ann. Mag. Nat. Hist., Ser. 4, Vol, xvi, 
1876, p. 210, pl. xii, figs. 11-16. Carpenteria utricularis, Carter sp., 
Brady, Rep. Chall. Vol. 1x, 1884, p. 678, pl. xcix, figs. 6,7; pl.c, figs. 1 - 4. 
Chapman, Journ. Linn. Soc. Lond., Zool., Vol. xxviii, 1900, p. 12, pl. ii, 
fig. 4; pl. iv, figs. 3, 4. 
5 C. rhapidodendron, Moebius, Tageblatt der 49 Versammlung deutscher 
Naturforscher und Aerzte in Hamburg, 1876, p.115. Chapman, Journ. 
Linn. Soc Lond., Zool., Vol. xxvit1, 1900, p. 395, pl. xxv. fig. 2. 
+ Rupertia stabilis, Wallich, Ann. Mag. Nat. Hist., Ser. 4, Vol. x1x, 1877, 
p. 501, pl. xx. Jones and Chapman, Mon. Christmas Island, 1900, p. 254, 
pl. xxi, fie. 11. 
5 Carpenteria balaniformis var. proteiformis, Goés, Retic. Rhizop. Carib. 
Sea, 1882, p. 94, pl. vi, figs. 208-214; pl. vii, figs. 215-219. CC. prote- 
formis, Goés, Brady, Rep. Chall., Vol. rx, 1884, p. 679, pl. xcvii, figs. 8—14. 
6 Journ. Coll. Sci. Imp. Univ., Tokyo, Vol. xvii, Art. 6, 1902, p. 15, pl. 
li, fig. 3. 
