PLATE V. 
Fig. 1. Cerioporafarringdonensis,(jveg. Lower Greensand : Farring- 
don. The upper surface of the type-specimen ; nat. size, 
Mantell Coll. [10,298 ?] 
Fig. 2. Part of the same specimen ; x 8 dia. Mantell Coll. [10,298.] 
Fig. 3. Ceriopora farringdonensis^ Greg. Lower Greensand ; Farring- 
don. . Side view of a more tuberous specimen ; nat. size. 
Cunnington Coll. [D. 7290.] 
Fig. 4. Ceriopora farringdonensis, Greg. Lower Greensand : Farring- 
don. A young zoarium ; nat. size. Sharp Coll. [D. 7291.] 
Fig. 5. Ceriopora collis (d’Orb.) and Semimulticavea variolata, n.sp., 
growing on a Terehratula. Lower Greensand : Farringdon. 
Fig. 5a, the specimen, nat. size ; Fig. 55, Ceriopora collis, 
part of the zoarium, x 12 dia. ; Fig. 5c, Semimulticavea 
variolata, part of the surface, x 12 dia. [D. 3027.] 
Fig, 6. Multicrescis variahilis, d’Orb. Upper Greensand : Haldon 
Hills. Fig. 6a, the zoarium from the side, nat. size ; Fig. 65, 
part of the zoarium, x 10 dia. [D. 3179.] 
Fig. 7. Heteropora keepingi, Greg. Lower Greensand ; Cox well, 
Farringdon. Fig. 7a, the zoarium from the side, nat. size ; 
Fig. 75, part of the surface, x 10 dia. Cunnington Coll. 
[D. 7292.] 
Fig. 8. Heteropora keepingi, Greg. Lower Greensand : loc. ? The 
zoarium, nat. size ; a section of this specimen is shown as 
Fig. 50, p. 191. [B. 118.] 
Fig. 9. Ceriopora confma (Loriol). Lower Greensand : Shanklin, 
Isle of Wight. The zoarium from the side ; nat, size. 
Westlake Coll. [D. 3020.] 
Fig. 10. Choristopora impar, Lonsd. Lower Greensand : Shanklin, 
Isle of Wight. Fig. 10a, the zoarium from the side, nat. 
size ; Fig. 105, part of the surface, x 9 dia. ; Fig. 10c, thin 
transverse section, x 8 dia. M. Norman Coll. [D. 3147.] 
