16 BRITISH SPONGES. 
34. HALICHONDRIA? Conus. 
Spongia Conus, Montagu in Wern. Mem. iu. 85. pl. 10; Flem. 
Brit. Anim. 526. 
Tupha conica, Gray, Brit. Pl. i. 356. 
Halichondria? Conus, Johnst. Brit. Sp. pp. 132, 248. 
Inhab. 2 
35. HALICHONDRIA ? rigida. 
Spongia rigida, Montagu in Wern. Mem. ii. 87. pl. 11. figs. 1, 2; 
Flem. Brit. Anim. 526. 
Tupha rigida, Gray, Br. Pl. i. 356. 
Halichondria? rigida, Johnst. Brit. Sp. pp. 132, 248. 
Inhab. 2 
36. HALICHONDRIA ? perlevis. 
Spongia perlevis, Montagu in Wern. Mem. u. 86; Flem. Brit. 
Anim. 526. 
Tupha perlevis, Gray, Brit. Pl. i. 356. 
Halichondria perlevis, Johnst. Brit. Sp. pp. 133, 248. 
H. seriata var.?, Johnst. loc. cit. 248. 
Inhab. 2 
5. BADIAGA. 
Badiaga, Buxbaum, Comm. Acad. Petrop. u. 1727, 343; Spengler, 
Syst. Veg. iv. 374, 1827. 
Halichondria, sp. Flem. B. A. 524, 1828. 
Spongilla, Lam. Hist. Anim. s. Vert. ii. 98, 1816, edit. 2, ni. 111; 
Blainy. Man. Actinol. 533-683 ; Schweig. Handb. 421; Johnst. 
Brit. Sp.; Gray, Brit. Plants, i. 353. 
Spongia pars, Linn. S. N. 1299. 
Cristatella, Lamk. Syn. 385, 1801 (Sponge not animal), not 1816; 
Lamz. Bull. Soc. Phil. 1. 182, 1812; not Cuv. Tabl. Elem.1798. 
Tupha, Oken, Lehrb. 1815; Schweig. Handb. 421; not Gray, 1820. 
KEphydatia, Lamour. Cor. Flea. 2, 1816. 
1. Bapraeca fluviatilis. 
Spongia fluviatilis, Pall. Elench. 384; Linn. Syst. 1299; Berk. 
Syn.i. 213; Turt. Gmel. iv.662; Blumenb. Man. 272; Bose. 
Vers, m1. 178. 
Badiaga fluviatilis, Spreng. Syst. Veg. iv. 374. 
Ephydatia fluviatilis, Lamour. Cor. Flex. 6, Corall. 148. 
Halichondria fluviatilis, Flem. Brit. Anim. 524. 
Spongilla fluviatilis, Johnst. Brit. Sp. 159. t. 17, 18, p. 250. 
Les Eponges d’eau douce, Gervais in Ann. des Se. Nat. n. s. iv. 
254. 
