212 WORMS. ZOOPHYTA. 18. Sertularia. 



Ellis Corallines p. 51. n. 7. tab. 24. /. f. F. 



About one or two inches long, difpofed in crest-like clusters, 

 red, purple, white, green or yellowish; the lower-joints not 

 horned, terminal-ones simple. 



699. C. spermophoros. Dichotomous, filiform, with roun- 

 dish joints; those supporting the 2 last subdivisions 

 clavate, terminal-ones long, setaceous, jn pairs. 



Ellis Corallines p. 51. . 8. tab. 24. /. g. G. 



About an inch long, milk-white, and more loofe and fpread than 

 the last. 



700. <J; corniculala. Dichbtemous, with the joints of th- 

 stem and b ranches 2- ho rne.dj those of the subdivisions 

 roundish. 



Eltis Corallines p. 50. n. 6. tab, 24. /. d. D. 



Growing on Fuci, white, an Inch or two high. 



701 . C. globifera. Simple, or slightly forked, with cylin- 

 drical joints proceeding from a spheerical globule. 



Ellis Coralline s p. 51. n. g. tab. 24. /. h. H. 



Very fmall, attached to Fuci, and may probably be the beginning 

 of C.,fperniophoros. 



78. SERTULARIA. 



A. Stem horny, tubular, fixed by the base, beset with cup- 

 shaped denticles, and furnished with vesicles or ovaries, con- 

 taining polypes, eggs, or the living young. 



702. S. rosacea. Panicled, with alternate, branches : 

 denticles opposite, tubular, truncate : vesicles crowned 

 with spines. 



Ellis Corallines p. 8. tab. 4. Phil* Tranr. 48. t. 23. /. 5. 



"White, tender, growing on shells or creeping up other coral- 

 lines ; vesicles refembling the blossom-of the pomegranate. 



703. S. pvmila. Branches scattered : denticles opposite, 

 seated on oval joints, pointed, recurved : vesicles 

 obovate. 



Ellis Coral/, p. 9. t. 5. n. 8. /. a. A. Phil. Trans. 48. t. 23. f. 6. F. F. 

 On the leaves of Tuci, particularly the F. ferratus.. 



704. S. operculata. Branches alternate : denticles oppo- 

 site, pointed, nearly erect, with 2 bristles each side ; 

 vesicles obovate, covered with a lid. 



Ellis Corallines p. 8. tab. 3. , 6./. b. B. . 

 On Fuci and shells, about 5 inches long. 



705. S. tamarisca. Branches alternate : denticles oppo- 

 site, truncate and undulate at top : vesicles obovate, 

 truncate, with a small tooth each side and a short 

 tube in the centre. 



Ellis Corallines p. 4. tab. i. n. i./. a. A. ' . 



Stem nearly 4 inches long : denticles slightly 3-toothed. 



706. S. abietina. Branches alternate : denticles nearly 

 opposite, oval, swelling at the base on the upper- 

 side : vesicles oval. 



Ellis Coralline* p. 4. tab. i. a. 2./. b. B. 



About 5 inches long, and often covered with small Serpul* j 

 branches often alternatejy pinnate. 



707 f . S. nigra, J31acki*b ? pinnate ; denticles nearly oppo- 



