DOESIBRANCHIAT^. 
135 
By the name of Marphis^e, M. Savigny distinguishes those spe- 
cies, otherwise very similar, in which the two tentacula on the nape 
are wanting; their ujjper cirrus is very short* * * § . 
A species at least closely allied to them, — A^. tubicola, Mull., 
Zool. Dan., I, xviii, 1 — 5, inhabits a horny tubef. 
After these genera with complex branchiae, we may place those 
Avhere they are reduced to simple laminae or slight tubercles, or in 
which they are even replaced by cirri. 
Some of them are still allied to the Eunices, by the strong arma- 
ture of their proboscis, and their azygous antennae. Such is the 
Lysidice, Sav. 
"Where, with jaws similar to those of the Eunices, and even more 
numerous and frequently azygous, the only branchiae consist of three 
tentacula and the cirri J. 
Aglaura, Sav^ 
The jaws of the Aglaurae are also numerous and azygous, con- 
sisting of seven, nine, &c. ; but their tentacula are either wanting or 
completely concealed ; their branchiae are also reduced to cirri §. 
Nereis, Cuv. — Lycoris, AS'ar. 
The true Nereides have an even number of tentacida, attached to 
the sides of the base of the liead, and a little further forwards, two 
others that are biarticulate, between which are two simple ones. 
Their branchiae consist of small laminae between Avhich is spread a 
network of vessels ; each foot is also furnished with two tubercles, 
two fasciculi of setae, one cirrus above, and another beneath. 
Several species inhabit the coast of France |[. 
In the vicinity of these Nereides are grouped several genera in 
* Nereis sanguinea, Montag., Lin. Trans., XI, pi. .'3. 
+ After the Eunices probably should come the Nereis crassa, Miill., Ver., pi. xii, 
which, without having seen it, M. de Blainville proposes to refer to the genus 
Eteone, Sav., although the branchiae of the latter are very different. 
X Lysidice Valentina, Sav.; — L. Olynqna, Id.; — L. yalaiina, Id., Eg., Annel., 
p. 53. 
§ I unite the Agi.aur.e and CEnones, Sav., and even certain species without 
tentacula, left among the Lysidices by Messrs. Axrdouin and Edwards ; Aglaura ful- 
gida, Eg. Annel., V, 2 ; — (Enone lucida, Ib., f. 3. 
II Nereis versicolor, Gm., Miill., Wurm., VI ; — N. fimbriata, Id., viii, 1 — 3 ; — N. 
pelagica. Id., vii, 1 — 3 ; — Terebella iitbra, Gm., Boinm^, M^m. de Fless., VI, 357, 
f. 4, A, B; — Lycoris agyptia. Eg., Annel., pi. iv, f. 1 ; — Lycoris nuntia. Id. Ib. f. 2; 
— Nereis beaucoudrasii, Aud., and Edw., Littor. de la Fr., Annel., pi. iv, f. 1 — 7 ;— 
Ner. pulsatoriu, Ib., f. 8 — 13. 
N.B. Tlie Nereis verrucosa, Miill., Ver., pi. vii, and incisa, Ott., Fabr., Soc. Hist. 
Nat. Copenhag., V, part I, pi. iv, f. 1 — 3, seem to have the head of a Lycoris, but 
with long filaments in place of branchiae : they require examination. 
