“Cribrimorph”” Cretaceous Polyzoa. 95 
6. Coste 20-25. 
1. Costa 20-22, 5-6 lateral costal fusions. 
#. Apertures supra-semicircular; apertural 
spines not much thickened, apertural 
bar flattened, not very high ........ 5. C. nucifera. 
8. Apertures somewhat cribriline; aper- 
tural spines considerably thickened, 
apertural bar stouter thana ........ 6. C. juglans. 
2. Coste 20-25, 6-7 lateral costal fusions. 
a. Apertures hardly cribriline, length 
about ‘9 mm.; proximally directed 
avicularia P occasional, »........... 7. C. castanea. 
8. Apertures cribriline, length at least 
1 mm. ; proximally directed avicularia 
rare or absent. 
a. Length 1-13 mm. ; aperture slightly 
Sha DTS ap tote nes eae et 8. C. glandulosa. 
b. Length 2 mm.; aperture markedly 
CHIPENIN Awa snes dle via ceteeelect 9. C. guascot, 
I. Co relrorsa, sp. Ws 
Type-specimen. British Museum, D. 21170; Marsupites- 
zone ; Odiham, Hants. 
2. C. [ Cribrilina| dibleyi (Brydone), 1906, Geol. Mag. dee. v. 
vol. ii. p. 297, text-fig. 8 on p. 297; mucronatus-zone ; 
Trimingham, Norfolk. 
3. C. [Reptescharipora] ornata (d’Orbigny), Pal. France. 
1852, pl. 720. figs. 6-8, 1853, p, 494; Senonian ; 
Venddme, France. 
4, C. | Escharipora| magnifica (VOrbigny), Pal. Franc. 1851, 
pl. 686. figs. 1-5; Hscharipora pretiosa, d’Orbigny, 
1852, Pal. Frang. p. 227; Senonian [Campanian] ; 
Sainte Colombe and Royan, France. 
5. C. nucifera, sp. n. 
Type-specimen. British Museum, D. 15600 ; mucronatus- 
zone; Trimingham, Norfolk. 
6. C. juglans, sp. n. 
Type-specimen. British Museum, D. 15608 ; mucronatus- 
zone; Trimingham, Norfolk. 
7. C. castanea, sp. n. 
Type-specimen. British Museum, D. 16654; mucronatus- 
zone ; Riigen. 
