386 Mr. W. D. Lane—Revision of the 
1. A. segnis, sp. n. 
Type-specimen. British Museum, D. 4047; Lower Seno-— 
nian; Chatham, Kent. 
2. A. pigra, sp. 0. 
Type-specimen. In collection of M.Canu (a photograph of 
type-specimen in British Museum) ; Coniacian or Cam- 
panian; La Bonneville, France. 
3. A. improba, sp. n. 
Type-specimen. British Museum, D. 28912; quadratus- 
zone, depressa-subzone ; HE. of Brighton, Sussex. 
V. NANNoPoRA, gen. nov. 
Genotype. N. pygmea. 
Tabular Diagnoses of the Species. 
A. Apertures hardly “cribriline” ...........0.: 1. NV. paternensis. 
B. Apertures entirely “ cribriline.” 
Ty .Ciiciaiclose topet her’. (A: ceen ans nae cece 2. N. pygmea. 
II. Gicia somewhat separate. ...........0cccen 3. NV, lepida. 
1. N. paternensis, sp. 0. 
Type-specimen. British Museum, D. 28455; Coniacian ; 
St. Paterne, France. 
2. N. | Reptescharella| pygmea (d@’Orbigny), Pal. Franc. 1852, 
pl. 716. figs. 7-8, 1853, p. 468; Senonian; Sainte- 
Colombe, France; interpreted according to Canu’s 
identification of a specimen from Tours or Villedieu, 
in his collection (a photograph of this specimen is in 
the British Museum). 
3. N. lepida, sp. n. 
Type-specimen. In collection of M.Canu (a photograph 
of type-specimen in British Museum) ; [Senonian] ; 
Tours or Villedieu, France. 
VI. Disransescnare.ta, d’Orbigny, 1853, 
Pal. France. p. 463. 
Genosyntypes. Cellepora familiaris, von Hagenow, 1839, 
Neues Jahrbuch, p. 274. 
