56 8 
POLYPI. 
Genus 55.—LIRIOZOA.— Lamarck. 
Generic Character .—Calcareous and branched ; with tubular 
jointed creeping stems ; cells oblong, pedicellate, set in clusters 
of three, with opposite clusters at the top of the joints. 
Liriozoa Carribcea. — The Carritlean Liriozoa. 
Plate CV. fig. IS. size of nature ; 19. magnified. 
Cells in opposite clusters, terminal. Inhabits the West In¬ 
dian seas. 
Genus 56.—SERIALARIA.— Lamarck. 
Generic Character. —With horny, slender, fistulous, branched 
arms, provided with cylindrical projecting cells, parallel, coher¬ 
ing in a series, in masses or in a spiral continuous form. 
Serialaria lendigera. — The Lendigera Serialaria. 
Plate CV. fig. 8. size of nature ; 9. magnified. 
With filiform, jointed branches; and the cells in distinct rows. 
Inhabits the seas of Europe. 
Genus 57. — PLUMUL ARIA.— Lamarck. 
Generic Character. —With slender, fistulous, branched horny 
stalks, provided with calyciferous ramuli; having subaxillary, 
dentiform, prominent and sessile cells; and subpedunculate 
vesicles. 
Plumularia cristata. — The Crested Plumularia. 
Plate CV. fig. 6. size of nature ; 7. magnified. 
Loosely branched; cells companulate and sessile; with 
crested vesicles. Inhabits the seas of Europe. 
Genus 59. — S E RT U L A RI A. — Linnccus. 
Generic Character. —Horny, with simple, branched, slender, 
fistulous stems, which with the branches are provided with 
separate, lateral dentiform cells, which are projecting and sessile, 
or subpedunculated; either scattered or arranged in two opposite 
rows; vesicles larger than the cells. 
