Red Chalk Foraminifera. By Burrows , Sherborn , and Bailey. 561 
Polymorphina d’Orbigny, 1826. 
Polymorphina lactea (Walker & Jacob), plate XT. figs. 9, 10. 
Serpula lactea, Walker & Jacob in Ivannmacher’s edition of Adams, 
Essays Micros., 1798, p. 634; P. lactea , Brady, Bep. Challenger, 
ix. 1884, p. 559, plate lxxi. fig. 11. — Common in the red chalk. The 
two figured specimens of P. lactea v. elongata Brady, Rep. Chal- 
lenger, ix. 1884, p. 559, plate lxxi. fig. 14, are in Mr. Burrows’ 
collection. 
P. communis d’Orb., plate XI. fig. 11. D’Orbigny, Ann. Sci. Nat., 
vii. 1826, p. 266, No. 15, plate xii. figs. 1-4. — Not rare. Mr. Bailey’s 
preparations. 
P. amygdaloides Reuss, and P. gibba d’Orb., plate XI. figs. 12, 
13. — Abundant specimens of small Poly morphines occur in Mr. 
Bailey’s preparations, and can, we believe, be referred to these two 
forms. As shown in the figures given by Brady, Parker, and Jones 
(Trans. Linn. Soc., xxvii. plate xxxix., woodcuts p. 215) these forms 
differ principally in degree of compression ; it is therefore difficult to 
separate them when mounted in Canada balsam. 
P. horrida Reuss, plate XI. fig. 14. Globulina horrida Reuss, 
Verst, bohm. Kreide, part 2, 1846, p. 110, plate xliii. fig. 14. 
P. horrida J. Wright, Proc. Belfast Nat. Field Club, App. iii. 1875, 
p. 85 (87), plate iii. figs. 14, 15. — This characteristic cretaceous 
foraminifer occurs sparingly in our washings. 
Polymorphina sp., plate XI. fig. 15. — One large, irregularly grown 
form in Mr. Burrows’ collection. 
Uvigerina d’Orbigny, 1826. 
A fine and perfect specimen of TJvigerina was found by 
Mr. Bailey in Speeton washings, but was unfortunately lost before a 
drawing had been taken. 
Ramulina Rupert Jones, 1875. 
Ramulma aculeata (d’Orb.), plate XI. fig. 16. Dentalina aculeata 
d’Orbigny, Mem. Soc. Geol. France, iv. 1840, p. 13, plate i. 
figs. 2, 3 ; R. aculeata , Wright, Proc. Belfast Nat. Field Club, 
App. ix. 1886, p. 331, plate xxvii. fig. 11. — Several large isolated 
chambers of this foraminifer occur in Mr. Burrows’ collection. 
Fragments have also been met with in Mr. Bailey’s preparations. 
Globigerina d’Orbigny, 1826. 
Globigerina bulloides d’Orb., plate XI. fig. 17. D’Orbigny, Ann. 
Sci. Nat., vii. 1826, p. 277, No. 1. — Frequent in our washings. 
Jones & Parker record it from Flamborough Head (Emmett Coll.). 
G. cretacea d’Orb., plate XI. figs. 18 a, b , c. D’Orbigny, Mem. Soc. 
Geol. France, iv. 1840, p. 34, plate iii. figs. 12-14. — Very common. 
G. Linnseana (d’Orb.), plate XI. fig. 19. Rosalina Linneiana 
