136 
ANNELIDES. 
which the body is also slender, and the branchiae are reduced to sim- 
ple laminae, or even simple filaments or tubercles. The jaws or ten- 
tacula are wanting in some of them. 
Phyllodoce, Sav. — Nereiphylla, Blainv. 
The Phyllodoces, like the true Nereides, have an even number of 
tentacula on the sides of the head, and four or five small additional 
ones before. They are furnished with eyes ; their large proboscis, 
which is studded with a circle of very short fleshy tubercles, presents 
no jaws, and, what particularly distinguishes them, their branchiae 
resemble broad leaves, arranged in a single row on each side of the 
body, and overlapping each other ; finely ramified vessels are distri- 
buted over them *. 
Alciopa, Aud. and M. Edic. 
The mouth and tentacula nearly similar to those of the Phyllodoces ; 
but the feet, independently of the tubercle which supports the setae 
and the two foliaceous cirri or branchiae, are furnished with two 
branchial tubercles which occupy their superior and inferior edges f. 
Spio, Fah. and Gm. 
The body slender ; two very long tentacula which have the appear- 
ance of antennae ; eyes in the head and on each side of every segment 
of the body; branchiae in the form of a simple filament. They are 
small worms from the Arctic Ocean, and inhabit membranous tubes j;. 
Syllis, Sav. 
An odd number of tentacula, articulated like the beads of a rosary, 
as well as the superior cirri of the feet, which are simple and have 
* Nereis lameUifera utlantica, Pall., Xov. Act. Petrop., II, pi. v, f. 1 1 — 18, per- 
haps the same as the NereiphyUe de Pareto, Plainv., Diet, des Sc. Nat. ; — N. Jiava, 
Ott., Fabr., Soc. Hist. Nat. Copenhag., V, part I, pi. iv, f. 8 — 10. 
N. B. The N. riridis, Mull., Ver., pi. xi, of which, without having seen it, M. 
Savigny proposes to make the genus Eulalia, and the two Eunomi.e, Kisso, Eu- 
rop. Merid., IV, p. 420, also appear to me to he Phyllodoces ; perhaps we should 
also so consider the Nereis pinnigera, Montag., Lin. Trans., IX, vi, 3 ; and the 
Nereis stellifera, IMiill., Zool. Dan., pi. Ixii, f. 1, of which, without having seen it, 
Savigny proposes to make a genus by the name of Lepidia ; and the N. tonga, 
Ott., Fabr., placed by Savig. with the N. flam in his genus Eteone : All these 
Annelides require to he carefully examined according to the detailed method of IM. 
Savigny. 
We must not confound these Phyllodoces of Savigny with those of Ranzani, which 
are allied to the Aphroditie, and particularly to the Polynoes. 
L Alciopa Rcgnavdii, Aud., and Edw'., — from the Atlantic Ocean. — The pretended 
Nais Rathke, Soc. Hist. Nat. Copen., V, part I, pi. iii, f. 15, may very possibly be 
an Alciopa. 
J Spio seticornis, Ott., Fabr., Berl., .Schr., VI, v, 1, 7 ; — Spio fllicornis, Ib., 8 — 
12. The POLYDOR.E, Bose., Ver. I, v, 7, appear to me to belong to this genus. 
Spio, the name of a Nereid. 
