BRITISH SPONGES. 13 
24. HaLicHonpria hystrix, Johnst. MSS. 
a. Small round mass. Presented by G. Johnston, M.D. 
b. Spicula of a, in Canada balsam. Prepared by J. 8. 
Bowerbank, Esq. 
f. SuBERULA. 
25. HALICHONDRIA Coalita. 
Spongia coalita, Mill. Zool. Dan. Prod. 256; Zool. Dan. iii. 71. 
t. 120; Turt. Gmel. iv. 662; Montagu in Wern. Mem. ii. 80; 
Bosc. Vers, iii. 177; Lam. Anim. s. Vert. 11. 382, 2nd edit. ii. 
572; Lamour. Cor. Flex. 80, Corall. 184; Parkins. Oryctol. 
47; Grant in Edin. Phil. Journ. xiv. 118, and in Edin. New 
Phil. Journ. ii. 128. 
Tupha coalita, Gray, Brit. Pl.i. 355. 
Halichondria coalita, Flem. Brit. Anim. 522; Bellamy’s South 
Devon, 268 ; Johnst. Br. Sp. 135. t. 12. f..1, p. 249. 
Halispongia coalita, Blainv. Actinol. 532. 
Spongia suberosa, Esper, Spong. t.41. 
a. Br. Sp. t. 12. f. 1. Frith of Forth? Presented by G. 
Johnston, M.D. 
6. Spicula of a, in Canada balsam. Prepared by J. S. 
Bowerbank, Esq. 
26. HALICHONDRIA virgultosa. 
Spongia virguitosa, Lam. Anim. s. Vert. ii. 375, 2nd edit. ii. 565; 
Lamour. Cor. Flex. 66, Corall. 177; Parkins. Oryctol. 44. 
Halichondria virgultosa, Johnst. Brit. Sp. 137. t. 15. figs. 1-3, 
pp- 197, 249. 
a. Brit. Sp.t. 15. figs. 1 and 2. Scarborough, W. Bean, Esq. 
Presented by G. Johnston, M.D. 
6. Spicula of a, in Canada balsam. Prepared by J. S. 
Bowerbank, Esq. 
27. HALICcHONDRIA hirsuta. 
Halichondria hirsuta, Flem. Brit. Anim. 522; Johnst. Brit. Sp. 
p. 138. t. 16. fig. 1, p. 249. 
Inhab. deep water, Zetland, Fleming; Ireland, Thompson. 
Mus. W. Thompson. 
28. HALICHONDRIA domuncula. 
Spongia suberea, Montagu in Wern. Mem. 11. 100. 
Halichondria suberea, Johnst. Brit. Sp. p. 139. t. 12. figs. 5, 6, 
p. 141. fig. 14, and pp. 197, 249. 
