BRITISH SPONGES. 
15 
30. Halichondria Ficus. 
Alcionio tuberoso in forma di fico, Imperat. Ital. 641. iig. inf. 
Sponge called the Sea Fig, Ellis and Soland. Zooph. 206. pi. 59. 
fig. 4. 
Alcyonium Ficus, Esper, Alcyon. tab. 20. figs. 1-4 ; copied Johnst. 
Brit, Sp. t. 77 - fig- 11 ; Lamour. Cor. Flex. 348; not Pallas. 
Halichondria Ficus, Johnst. Brit. Sp. p. 144. t. 15. figs. 4 and 5, 
and p. 249. 
Alcyonium ficiforme, Lam. Anim. s. Vert. ii. 394; edit. 2, ii. 599. 
Spongia ficiformis, Lamx. Cor. Flex. 47 ; Expos. Metli. 29. t. 59. 
f.4. 
Choanites Ficus, Mantell, Geol. Sussex, 179. 
a. Scarborough, Brit. Sp. t. 15. fig. 4. W. Bean, Esq. 
Presented by G. Johnston, M.D. 
b. In primary state? Presented by G. Johnston, M.D. 
c. Spicula in Canada balsam. Prepared by J. S. Bower- 
bank, Esq. 
d. e. In spirits. Mammaria,” Leach MSS. Presented by 
J. Cranch, Esq. 
31. Halichondria sevosa. 
Halichondria sevosa, Johnst. Brit. Sp. p. 147. t. 16. figs. 3, 4, 
pp. 198, 249. 
36 a. Brit. Sp. 1. 13. fig. 3. Isle of Man. E. Forbes, Esq. 
Presented by G. Johnston, M.D. 
b. Spicula of a, in Canada balsam. Prepared by J. S. 
Bowerbank, Esq. 
.‘32. Halichondria maculans. 
Halichondria maculans, Johnst. MSS. 
a. On a shell. Berwick Bay. Presented by G. Johnston, 
M.D. 
b. Spicula of a, in Canada balsam. Prepared by J. S. 
Bowerbank, Esq. 
Species requiring f urther examination^ 
33. Halichondria ? aurea. 
Spongia aurea, Montagu in Wern. Mem. ii. 86 ; Flem. Brit. 
Anim. 526. 
Tupha aurea. Gray, Brit. PI. i. 356. 
Halichondria? aurea, Johnst. Brit. Sp. pp. 131, 248. 
Inhab. ? 
