80 CLASS I. 
red. It has been specially investigated by Minnzk Epwarps, and very 
beautifully figured in his Observations sur les Aleyons. Ann. des Sc. nat. 2€ 
Sér. Tom. Iv, Zool. pp. 333—343- Pl. 14, 15. 
Family V. Pennatulina. Stem free, fleshy, containing inter- 
nally an axis stony or horny. Polyps naked, aggregated on the 
common stem, with tentacles pinnate or pennatifid. 
Sea-Feathers (Polypi natantes s. Penne marine). The opinion, 
that these polypstocks swim about in the sea, appears to be un- 
founded. The stem is fixed in the ooze at the bottom of the sea, 
or the polypary lies on the bottom ; it is only when the waves or 
the fishermen’s nets have broken the Pennatula loose, that it swims 
free in the water. Comp. W. Rare Ueber Polypen wu. Actinien 
s. 8,34. Costa in Frorier’s neue Notizen, Bd. xxi. Feb. 1842, 8. 154. 
Many species are phosphorescent: Pennatula phosphorea, Pen. 
grisea, Pen. rubra (P. granulosa Lam.), Veretillum cynomorium from 
the Mediterranean and Pen. argentea from the Indian sea. 
The genus Lncrinus, placed by LAMARCK amongst the sea-feathers, 
belongs to the Echinoderms, and is, as Exiis long ago remarked, a 
species of star-fish with a stem. Nat. Hist of Coral. 
A. Shaft pinnated in scales at the upper part, pinne polypiferous. 
Pennatula L. (exclusive of species). Shaft fleshy, at the lower 
part naked, at the upper pinnate, axis stony. Pinne two-ranked, 
patent, plicate, dentate on the upper margin. 
Sp. Pennatula grisea L., Pennatula spinosa LaM., ALBINI Annot. Acad. Lib. 
1. Tab. vi. figs. 1, 2, Bonapscn De quibusd. animalib. mar. Tab. Ix. 
figs. 1—3, Esper Pflanzenth. Pennat. Tab. 1. Pen. rubra L., Pen. granu- 
losa Lam., AuBIn. 1. 1. figs. 3, 4, ESPER Pflanzenth. Pennat. Tab. 11. both 
from the Mediterranean. 
Virgularia LAM. Shaft elongate, slender, naked below, pin- 
nated above, with sub-stony axis. Pinne small, unarmed. 
Sp. Virgularia mirabilis, Pennat. mirabilis Murtn. (not L.) Zool. Danie. 
Tab. x1. Cuv. R. Ani. édit. illustr., Zoophyt. Pl. xct. fig. 2. 
B. Shaft simple, with polypiferous warts or papille at the upper part. 
Funiculina Lam. (Pavonaria and Scirparia Cuv.) Shaft elon- 
gate, filiform, with axis horny or sub-stony. Polyps arranged in 
series, secund or alternate. 
