PLATE X. 
Eig. 1. Entalophora virgula (Hag.), var. raripom. Orb. Middle 
Chalk ; Chatham, x 6 dia. Camble Coll. [D. 461.] 
Fig. 2. Entalophora virgula (Hag.). Middle Chalk : Chatham. A 
zoariiim of the typical variety, x 6 dia. Presented by 
W. Gamble, Esq. [D. 4516.] 
Fig. 3. Entalophora virgula (Hag.), var. alternata^ Orb. Upper 
Chalk : Bromley. A fragment of a zoarium, x 6 dia. 
Simmons Coll. [D. 2835.] 
Fig. 4. Entalophora virgula (Hag.), var. fuibgracilis. Orb. Middles 
Chalk : Chatham. Part of a zoarium, x 6 dia. Gamble 
Coll. [D. 376.] 
Fig. 5. Entalophora pergensi^ n.sp. Middle Chalk : Chatham. 
Part of a zoarium, x 10 dia. Gamble Coll. [D. 4072.J 
Fig. 6. Entalophora pergensi^ n.sp. Middle Chalk : Chatham. P.irt 
of a zoarium, x 10 dia. Vine Coll. [D. 948.] 
Fig. 7. Entalophora pergensi, n.sp. Middle Chalk : Chatham. 
fragment of a zoarium with gonoecium, x G dia. Gamble 
Coll. [D. 418.] 
Fig. 8. Entalophora gerninata (Hag.). Middle Chalk : Chatham. 
Part of a zoarium, x 10 dia. Vine Coll. [D. 648.] 
Fig. 9. Entalophora liornda, Orb. Chalk Powder : Slieve Gallion, 
CO. Derry. Part of a zoarium, x 20 dia. Presented by 
J. ‘Wright, Esq. [D. 3276.] 
Fig. 10. Entalophora echinata (Rum.). Middle Chalk : Chatham. 
Upper part of a zoarium with gonocyst, x 20 dia. Vine 
CoU. [D. 657.] 
Fig. 11. Entalophora echinata (Rom.). Middle Chalk : Chatham. 
Part of a zoarium with a smaller gonocyst, x 25 dia. 
Vine Coll. [D. 2612.] 
Fig. 12. Entalophora echinata (Rom.). Middle Chalk : Chatham. 
Part of a striated branch with gonocyst, x 15 dia. Vine 
Coll. [D. 2613.] 
Fig. 13. Entalophora echinata (Rom.). Chalk : Kent. Part of 
a subclavate branch, x 15 dia. Bowerbank Coll. [D. 3108.] 
Fig. 14. Entalophora madreporacea (Goldf.), var. inconstans. Upper 
Chalk : Afton Downs, I. of Wight. Part of a branch, 
X 10 dia. Presented by Mr. A. Hinton. [D. 2285.] 
Fig. 15. Entalophora madreporacea (Goldf.), var. henedeni. Middle 
Chalk : Chatham. Fragment of a zoarium, x 10 dia. 
Gamble Coll [D. 4351.] 
