180 MR. F. CHAPMAN ON FORAMINIFERA 
Peneroriis (Monatystpium) (?) ponrrus, Chapman. (PI. 19. 
fig. 8.) 
Peneroplis (Monalysidium) politus, Chapman, 1900, Journ. Linn. Soc., 
Zool. vol. xxviii. p. 4, pl. i. fig. 5. 
The specimen now figured, from the Funafuti lagoon, is a weak, 
thin-shelled peneroplid, and would probably end in a lengthened 
series such as the specimen previously figured, which however 
had lost its initial series. 
Lagoon, Funafuti. Sample 18 (72 fathoms). 
PENEROPLIS (MONALYSIDIUM) CYLINDRACEUS (Lamarck). 
Spirolina (Spirolinites) cylindracea, Lamarck, 1804, Ann. du Muséum, 
vol. v. p. 245, no. 2. 
Peneroplis pertusus (Forsk.), type d, Brady, 1884, Rep. Chall. vol. ix. 
p. 305, pl. xiii. figs. 20, 21. 
The slender tests composed of a small spiral and a long chain 
of subglobular chambers are frequent in one sample from the 
lagoon. The surfaces of the chambers are relieved with delicate 
vertical striz, which under a high power can be resolved into 
rows of minute tubercles. 
Lagoon, Funafuti. Sample 17 (12 fathoms). 
Preneropiis (Monatysipium) Sounasi, Chapman. 
Penerophis (Monalysidium) Sollasi, Chapman, 1900, Journ. Linn. Soc., 
Zool. vol. xxviii. p. 3, pl. i. fig. 6. 
Fragments of the slender test of this species were found in 
the lagoon; they do not, however, exhibit the initial portion of 
the shell. 
Lagoon, Funafuti. Sample 17 (12 fathoms); sample 18 
(74 fathoms). 
Orprrouites, Lamarck [1801]. 
ORBITOLITES MARGINALIS (Lamarck). (Pl. 20. figs. 1-8.) 
Orbulites marginalis, Lamarck, 1816, Hist. Nat. Anim. sans Vert. vol. ii. 
p- 196, no. 1. 
Orbitolites marginalis (Lam.), Carpenter, 1885, Phil. Trans. vol. clxxiv. 
p. 599, fig. 1. 
Q, marginalis (Lam.), Flint, 1899, Rep. U.S. Nat. Mus., Rep. for 1897, 
p- 304, pl. 50. fig. 2; pl. 51. fig. 1. 
This species is very characteristic of the shallow-water dredgings 
