BRITISH SPONGES. 17 
Spongilla ou Eponge d’eau douce, Dujardin in Ann. des Sc. Nat. 
n. s. X. 4. pi. 1. figs. 1-4. 
Cristatella, ou fiponges fiuviatiles, Lamx. Bull. Soc. Phil. iii. 182. 
Yar. a. Sponge crust aceous, massive and slightly lohed, or throw-’ 
ing up short branches. Johnst. B7'it. Sp. 1. 17- 
Spongia fluviatilis anfractuosa, perfragilis, ramosissima nostras. 
Plunk. Phytog. tab. 112. fig. 3. 
Spongia fluviatilis ramosa fragilis, Raii Hist. PI. iii. 16 ; Syn. i. 
30. no. 6. 
Fungus vel potius Spongia viridis, doliolis adnascenti similis, 
Raii Syn. i. 57. no. 11. 
Spongia lacustris, Linn. Flor. Suec. 439. no. 1190; FI. Lapp. 
389; Syst. Nat. 1299; Esper, Spong. tab. 23 A. figs. 1-11; 
Berk. Syn. i. 213 ; Turt. Gmel. iv. 662 ; Turt. Brit. Faun. 209 ; 
Stew. Elem. ii. 435; Bose. Vers, iii. 178; Link in Ann. des 
Sc. Nat. n. s. Bot. ii. 328. 
Badiaga major, Buxhaum, 1. c. 343. 
Spongia friabilis, Esper, Spong. tab. 62. figs. 1-4 ; Turt. Gmel. 
iv. 662; Bose. Vers, iii. 178. 
Ephydatia lacustris, Lamour. Cor. Flex. 7, Cor all. 149. 
Ephydatia friabilis, Lamour. Cor. Flex. 6, Cor all. 148. 
Spongilla friabilis, Lam. Anim. s. Vert. ii. 100, 2nd edit. ii. 114; 
Risso, L’Europ. Me'rid. v. 367 ; Grant in Edinh. Phil. Journ. 
ii. 138. pi. 2. fig. 1 (the spiculum), copied in Blainv. Atlas, 
pi. 94. fig. 1 ; Blainv. Man. 534 ; Schweig. Handh. 421 ; Tem- 
pleton in Mag. Nat. Hist. ix. 470; Stark, Elem. ii. 442. 
Spongilla pulvinata, Lam. Anim. s. Vert. ii. 99, 2nd edit. ii. 1 13 ; 
Gray, Brit. PI. i. 353. 
Spongilla fluviatilis, Blainv. Actinol. 534. pi. 92. fig. 6 ; Hogg’s 
Stockton, 39; Hogg in Ann. Nat. Hist. i. 478, ii. 370, iii. 58 
and 459, vi. 315; Hogg in Trans. Linn. Soc. xviii. 363, and 
in Charlesworth’ s Mag. Nat. Hist. iv. 259 ; Johnst. Brit. Sp. 
p.l59. pi. 17 & 18. 
Spongilla lacustris, Blainv. Actinol. 534. 
Yar. jS. Erect and branched, plant-like. Johnst. Brit. Sp. t. 18. 
Spongia ramosa fluviatilis Newtoni, Raii Hist. PI. i. 81 ; Syn. i. 
30. no. 5. 
Badiaga cinerea, Buxbaum, 1. c. ii. 343. 
Spongia fluviatilis?, Linn. FI. Suec. 440. no. 1191. 
Spongia lacustris, Esper, Spong. tab. 23. figs. 1, 2. 
Spongia canalium, Turt. Gmel. iv. 662; Bose. Vers, iii. 179. 
Ephydatia canalium, Lamour. Cor. Flex. 6, Corail. 148; Fleming in 
Edinb. Phil. Journ. ii. 88; Flem. Phil. Zool. ii. 614. pi. 5. fig. 4, 
Spongilla ramosa, Lam. Anim. s. Vert. ii. 100, 2nd edit. ii. 114; 
Gray. Brit. PI. i. 353 ; Dutrochet in Ann. des Sc. Nat. 1828, 
p. 205,” Bull, des Sc. Nat. xvii. 156; Stark, Elem. ii. 442, 
