IVOR-MS, ZOOPHYTA. 70. Cellcpora. i& 



branches flat, narrow, irregularly fubdivided, coalescing, twisting, 

 and branching out again, leaving hollow fpaccs between them. 



642, M.foliacea. Foliaceous, flexuous, uniting here and 

 there at the extremities, and covered with hardly 

 visible pores on both sides. 



Ellis. Corallines;?. 71. tab.- 30. f..a. A. B.- C. 

 * From 3 inches to a foot long: white, stony. 



43. M. celtulosa. Membranaceous, reticulate, funnel-form, 

 irregularly waved and plaited on the margin, with 

 numerous pores on one side. 



Ellis. Corall.p. 72. t. 25. /. d. D; F. Nat. Miscell. t. 169. 



About 3 inches high, solid, brittle, white or yellowish-grey, 

 refembling a piece of lace, consisting of a fiat undulating mem- 

 brane covered with large regular oval perforations on one sid, 

 *Juite smooth on the under-part between the openings ; sometimes 

 dispofed in a cup-fhaped form ; at other times running into loose 

 folds with a waved margin, like a ruftle. 



%4. M. polymorpha. Crustaceous, solid, irregularly sha- 

 ped, but generally branched and tubercled, witb 

 pores not visible to the naked eye. 



'Ellis. Cvrall.'p. 76. t. 27. C. Btackw. Herb. t. 343. 



Coral from j to 3 inches high, pure white, red, yellowish, green- 

 ish or grey; sometimes shaped like the kernel of a walnut; 

 often in large comprefsed maffes ; sometimes like a small bunch 

 df grapes ; but most frequently in short irregular ramifications of 

 a chalky tubercled appearance and stony substance. It is Ihc 

 common coral cf the shops. 



*6i5. "M.. Alga. Consisting of very thin and brittle semi- 

 circular plates, disposed horizontally. 



Solander and Ellit Zooph. p. \$\; n. 3. tab. 23. /. IG.-IS . 



Found on the Cornish coast, covering the M. polymorpha, and 

 is either red, purplish* yellow, or whitish ; extremely brittle and 

 thin, with femicircular plates of various sizes constantly growing 

 horizontally, with their' margins bending over, making them con- 

 vex on the upper-side 'and concave underneath. ' 



M. tubulosa. Crustaceous, parasitic, pale purple, 

 with tubular pores disposed in transverse rows or 

 whorls: 



Ellis Corall.p. 74. . 6. lab. 27. e. E. 

 Tubipora serpens. Gmel. 3754. Turt. iv. r. 614. 

 1 Found enveloping the stems of the Sertularia falcata: tubes erect 



or a little declining, minute, difpofed in rows over each other. 

 647. M. liliacea. Creeping, prostrate, in obtuse linear 

 divisions, with tubular v pores on the upper*surface 

 disposed in transverse rows. 



Mars. Hist. Mar. p. 153. tab. 347. 168. a. 4. 6. 

 Somewhat rcfembles the last, but is vrhite, 



70. CELLEPORA. Cellepore. 



643. C. spinosa. Parasitical, spongy, rough, consisting 

 of globular cells armed at the mouth with a spinous 

 tooth or two. 



Ellis Corallines p. 74. tab. 30. /. d. D. 



Found incrusting many of the SertularU: and Futi; ctlis 

 minute globular, ojen at top, guarded; round. lhe : moiilfr witU 

 fpincs. 



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