SPONGILLA. 159 



of Lamarck's nomenclature, which has received so general an 

 assent that we have felt constrained to adopt it also, although 

 the claim of priority is thus infringed upon. 



1. Sp. fluviatilis, " soft., brittle, and slenderly Jihrous 

 token dry ;" spicula slightly curved, linear and sharp pointed 

 at both ends. 



Plates XVIL and XVIII. 



Spongia fluviatilis, Pall. Elench. 384. Lin. Syst. 1299. Berk. 

 Syn.i. 21.3. Twrif. Gmel. iv. 662. Bhimenb. Man. 272. Base 

 Vers, iii. 178- 

 Badiaga fluviatilis, Spreng. Syst. Veg. iv. 374. 

 Ephydatia fluviatalis, Lamour. Cor. Flex. 6. Corall. 148. 

 Halichondria fluviatilis, Flem. Brit. Anim. 524. 

 Les Eponges d'eau douce, Gervais in Ann. des. Sc. Nat. n. s. iv. 



254. 

 Spongilla on Eponge d'eau douce, Dujardin in Ann. des. Sc. Nat. 

 n. s. X. 4, pi. i. fig. 1-4. 

 State a.. Sponge crustaceous, massive and slightly lobed, or throrvivg 

 up short branches. — Plate XV II. 



Spongia fluviatilis anfractuosa, perfragilis, ramosissiina nostras, 



Plunk. Phytog. tab. 112, fig. 3. 

 Spongia fluviatilis vamosa fragilis, Raii, Hist. PI. iii. 16. Syn. i. .30. 



no. 6. 

 Fungus vel potius Spongia \'iridis, doliolis adnascenti similis, Raii, 



Syn. i. 57, no. 11. 

 Spongia lacustris, Lin. Flor. Suec. 4-39, no. 1190. Fl. Lapp. 389. 

 Syst. Nat. 1299. Esper, Spong. tab. 23 A, fig. 1-11. Berk. Syn. 

 i. 213. Turt. Gmel. iv. 662. Turt. Brit. Faun. 209. Stew. 

 Elem. ii. 435. Bosc Vers, iii. 178. Link in Ann. des. Sc. 

 Nat. n. s. Bot. ii. .328. 

 Spongia friabilis, Esper, Spong. tab. 62, fig. 1-4. Turt. Gmel. iv. 



662. Bosc Vers, iii. 178. 

 Ephydatia lacustris, Lamour. Cor. Flex. 7. Corall. 149. 

 Ephydatia friabilis, Lamojtr. Cor. Flex. 6. Corall. 148. 

 Spongilla friabilis, Lam. Anim. s. Vert. ii. 100 : 2de edit. ii. 114. 

 Risso, L'Europ. Merid. v. 367. Grant in Edin. Phil. Jouni. xiv. 

 183 and 270 ; and in Edin. New. Phil. Journ. ii. 138, pi. 2, fig. 

 1, (the spiculum), copied in Blainv. Atlas, pi. 94, fig. 1. Blainv. 



