Red Chalk Foraminifera. By Barrows , Sherborn, and Bailey. 559 
Burrows Coll. This species appears only to have been recorded pre- 
viously from Tertiary and Recent deposits. 
Rhabdogoniiim, plate X. figs. 8 a , b. — A small example in 
Mr. Burrows’ collection. The specimen is free from matrix, hut the 
chambering is very obscure. We believe it to be referable to Reuss’s R. 
minutum , SB. k. Ak. Wiss Wien, lv. (1) 1867, p. 84, plate v. figs. 4, 5 ; 
Brady, Hep. Challenger, ix. 1884, p. 526, plate lxvii. figs. 4-6, but 
cannot definitely say. 
Vaginulina d’Orbigny, 1826. 
Vaginulina eurynota Reuss, plate X. fig. 9. Reuss, SB. k. Ak. 
Wiss. Wien, xlvi. (lj 1863, p. 90, plate xii. figs. 9 a , b. — Rare at 
Speeton. 
F. recta Reuss ( non Karrer, 1864), plate X. figs. 10-13. 
Reuss, SB. k. Ak. Wiss. Wien, xlvi. (1) 1863, p. 48, plate iii. figs. 
14, 15. Frequent, Burrows Coll. A variety of this form is given 
at fig. 11, and differs from it in the ornamentation produced by the 
mouths of each succeeding chamber. 
F arguta Reuss, plate X. figs. 14, 15. Reuss, SB. k. Ak. Wiss. 
Wien, xl. 1860, p. 202, plate viii. fig. 4. Rare, at Speeton. 
F legumen (Linn.), plate X. fig. 16. Nautilus legumen Lin- 
naeus, Syst. Nat. ed. 12, 1767, p. 1164; Brady, Rep. Challenger, 
ix. 1884, p. 530, plate lxvi. fig. 14.* — Several specimens, Bailey 
Coll. 
Vaginulina (immature). — Numerous similar examples of elongate 
nodosarian forms occur in Mr. Bailey’s preparations. 
Cristellaria Lamarck, 1816. 
Cristellaria rotulata (Lam.), plate X. figs. 17 a, b, and plate XI. 
fig. 7. Lenticulites rotulata , Lamarck, Ann. du Mus., v. 1804, p. 188, 
and viii. 1806, plate lxii. fig. 11 ; C. rotulata Brady, Rep. Chal- 
lenger, ix. 1884, p. 547, plate lxix. fig. 13. — Common, but the figured 
specimen in Mr. Burrows’ collection is gigantic as compared with 
the others. Jones and Parker record it from Flamborough Head 
(Emmett Coll.), and Wiltshire figures it from Hunstanton. 
C. cultrata (Montf.), plate X. figs. 18 a, b. Rotidus cultratus 
Montfort, Conch. Syst., i. 1808, p. 215, genre 54 ; C. cultratus Brady, 
Rep. Challenger, ix. 1884, p. 550, pi. lxx. figs. 4-8. — One fine 
specimen only. Burrows Coll. Doubtless many of the small speci- 
mens in Mr. Bailey’s preparations belong to this species, but they are 
too immature for determination. 
C . gibba d’Orb., plate X. figs. 19 a, b, 21. D’Orbigny, Ann. 
Sci. Nat., vii. 1826, p. 292 ; and in De la Sagra’s Hist. lie Cuba, 1839, 
p. 40, plate vii. figs. 21, 22. — One example, Bailey Coll. 
* See also Fornasini, Boll. Soc. Geol. Ital., v. 188ti, p. 25, pi. i., where the life- 
history of the typical form is traced and figured. 
