106 Mr. W. D. Lang—Revision of the 
24. P. danktonensis, sp. n. 
Type-specimen, British Museum, D. 23963; guadratus- 
zone, | depressa-subzone| ; Sompting, Sussex. 
25. P. lancingensis, sp. nu. 
Type-specimen. British Museum, D. 28947; quadratus- 
zone, | depressa-subzone | ; North Lancing, Sussex. 
26. P. saltdeanensis, sp. nu. 
Type-specimen. British Museum, D. 28842; guadratus- 
zone, depressa-subzone ; E. of Brighton, Sussex. 
27. P. collium, sp. n. 
Type-specimen. British Museum, D. 28824; quadratus- 
zone, { pillula-subzone | ; North Lancing, Sussex. 
28. P. promontoriorum, sp. 0. 
Type-specimen. British Museum, D. 28930; quadratus- 
zone, | pillula-subzone] ; North Lancing, Sussex. 
29. P. ranunculoides, sp. n. 
Type-specimen. British Museum, D. 28856; gquadratus- 
zone, depressa-subzone ; E. of Brighton, Sussex. 
30. P. lacuum, sp. n. 
Type-specimen. British Museum, D. 28862; qguadratus- 
zone, | pillula-subzone | ; North Lancing, Sussex. 
31. P. gyrinoides, sp. n. 
Type-specimen, British Museum, D. 28270; quadratus- 
zone; K. of Brighton, Sussex. 
32. P. somptingensis, sp. n. 
Type-specimen. British Museum, D. 28762; quadratus- 
zone, | guadratus-subzone] ; Sompting, Sussex. 
83. P. [Cribrilina| gregoryi (Brydone), 1906, Geol. Mag. 
dec. v. vol. ii. p. 300, text-fig. 13 on p. 300 ; and 1913, 
Geol. Mag. dec. v. vol. x. p. 436, pl. xiv. figs. 1, 2; 
quadratus-zone, guadratus-subzone ; Upham, Hants. 
