658 WORMS. ZOOPHYTA. 97. Spongia. 



0. Fabr.fin. GrcenL pi 448. n. 446* 



Inhabits the Greenland Teas, adhering to the larger Ulvae; about 



8 lines long: white, iilk) , downy on the outfide, and rarely 



found double. 



Cancellata* Tubular* porous, with cancellate fibres. 



Inhabits the Ocean: ferruginou?, elaftic, with a prickly furface; 

 the tube as thick as a finger, with a few lateral perforations. 



Rubra* Tough, fimple, carious, dull red, roundifh, deprefied, with 

 elevated tubercles and equal pores. 

 Inhabits the Red Sea y fixed to itoncs. 



Nigra, Tough, globular, equal, inflated, black without, cinereous 

 within. 

 Inhabits the Red Sea, on rocks. 



Ojf.cinatis. Irregularly formed, porous, tough, lobed* wooly. 



Philof TranfaB. 55. />, 288. tab, IO, fig. D, E. 



Soland, and Ellis Cor all. p t 183. n. 1 . 



Inhabits the Arehiepelago, Mediterranean and Indian feas, adhering 

 to rocks by a broad bafe, ad is often found inclofing fmall 

 Hones, fhells and panicles of fand : variety of marine animals 

 pierce and gnaw it into itregular winding cavities which appear 

 on the outfide by large holes higher than the reft: its colour 

 varies from a pale to a deep yellow: the internal part, when 

 cut perpendicular, confifts of fmall tubes compofed of reticu- 

 late fibre?, and ending on the outfide in an infinite rwimber of 

 fmall circular holes which are the bibulous mouths of the ani- 

 mal, each of which is furrounded by a few creel pointed fibres. 

 This is the common Sponge of the fhops. 



*Oculata. Porous, foft and very much branched, the branches a little 

 comprefled, erecl: and often uniting together. 

 Ellis CoralL p. 80. tab. 32. /. F. f. 

 Philof. TranfaB, 55./. 288. tab 10. fig. B. 

 Bocc. Muf. p, 258. /. 1 16. Ruyfch The/. I. t, 5. 

 Seba Muf, 3, tab. 97. fig. 5 — 7. 

 Pontopp. Nat, Nomv. 1, p. 267. tab. 12. 



Inhabits the Britifii feas ; 5 — 10 inches high : pale yellow, the 

 branches ending obtufely. 



Mu-ricata, Porous, much branched, angular, tough, the pores cylindri- 

 cal, fubulate, prominent, equal, many-cleft and hifpid. 

 Philof Trarfi. 55. p. 288. /. 1 1 . F. Muf. Teff. p, 1 1 8. /. 1 1 ./. I* 



Seba Muf. 3. tab, 188. tab, 99. fig, 7. 



Inhabits Guinea^ on roc|;s; grey, corky, the branches furrounded 

 on 2II fides with fmall obtufe fhaggy tufts: fietn as thick as a 

 finger, branches about the thickneis of a quilj. 



Ncdofa. 



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