Sertularia. 
Z. HYDROIDA. 
131 
Corallina marina abietis forma, Rail, Syn. 35, no. 12. Bast. Opusc. 
Subs. 41, tab. 2, fig. 6 ; and tab. 7, fig. 1 — 3, pessimae — Muscus ma- 
rinas major argute denticulatis, Plunk. Phytog. tab- 48, fig* 5. Raii> 
Hist. i. 78 Muscus maritimus filicis folio, Morris . Plant. Hist. iii. 
650. tab. 9, fig. 1 Sea-fir, Ellis, Corail. 4, no. 2, pi. 1, fig. b. B. 
Sertularia abietina, Linn. Syst. 1307. Pall Elench. 133. Mull . 
Zool. Dan. prod. 255. Ellis and Soland. Zoopli. 36. Berk. Syn. i. 
216. Turt. Gmel. iv. 676. Blumenb. Man. 273. Wern. Mem. i. 564. 
Turt. Brit. Faun. 212. Stew. Elem. ii. 441. Lam. Anim. s. Vert. ii. 
116, 2de edit. ii. 141. Stark, Elem. ii. 440. Risso, L’Europ. merid- 
v. 31 L Lamour. Cor. Flex. 189. Corallina, 81. Bose, Vers, iii. 106. 
Hogg's Stock. 3 1 . Johnston in Trans. Newc. Soc. ii. 256. Templeton 
in Mag. Nat. Hist. ix. 468 Dynamena abietina, Elem. Brit. Anim. 
543 La Sertularie sapinette, Blainv. Actinolog. 480, pi. 83, fig. 6. 
Hah. On shells and stones in deep water, common. 
“ This elegant coralline is frequently found on our coast, adhering 
by its vermicular tubes to most kinds of shells : it grows very erect, 
and is frequently infested with little minute shells called Serpulas.”— 
Ellis. Polypidom from 4 to 6 inches high, of a yellowish horn co- 
lour, smooth and varnished, stout, regularly pinnate, the stem flat- 
tened, slightly zigzag ; the branches rather close, linear, alternate, 
bifarious, simple, or sometimes pinnated. Cells generally semialter- 
nate, rather small, bellied at the base with a narrow everted neck and 
plain aperture, so as somewhat to resemble a Florence-flask. Vesicles 
scattered, subsessile, proportionably small, smooth, ovate, with an 
even shortly tubulous mouth : they are produced principally in the 
winter season, when they are sometimes “ in such abundance as al- 
most to cover the denticles, but placed in a very regular order,” El- 
lis , and always on the upper edge of the branch from which they 
originate. 
13. S. filicula, cells of the form of a Florence-flask , opposite, 
a single one in the axilla of each pinna ; vesicles pear-shaped , 
smooth , the aperture shortly tubulous , entire . Hudson. * 
Plate XI. Fig. 1, 1. 
Sertularia filicula or Fern Coralline, Ellis and Soland. Zooph. 57, pi. 6, 
fig. c, C. Turt. Gmel. iv. 681. Bose, Vers, iii. 114. Turt. Brit. Faun. 
215. Stew. Elem. ii. 445. Jameson in Wern. Mem. i. 564. Lam. 
Anim. s. Vert. ii. 119. Lamour. Cor. Flex. 188. Corallina, 82. 
Johnston in Trans. Newc. Soc. ii. 257. Hogg's Stockton, 32. S. 
* William Hudson, a London apothecary, elected F. R. S. in 1761 : the 
author of the “ Flora Anglica,” the publication of which, in 1762, “ marks the 
establishment of Linnaean principles of Botany in England, and their applica- 
tion to practical use.” — Sir J. E. Smith. 
