ORDER DORSIBRANCHIA. 21 



Bomme, Mem. de Flessing. vi. 357. fig. 4, A. B. ; Lycoris 

 Egyptia, Eg. Annel. pi. iv. f. 1 ; Lycoris nuntia, id. ib. f, 2 ; 

 N. heaucoudraisii. Aud, and Edw. Littor. de la France. 

 Annel. pi. iv. fig. 1 — 7 ; N. pulsatoria, ib. fig. 8 — 13. 



N. B. T!he Nereis verrucosa, Mull., vers. pi. vii. and incisa, 

 Ott., Fabr. Soc. d'Hist Nat. de Copenh. v. 1st part, pi. iv. 

 f. 1 — 3, appear to have the head of lycoris, but with long 

 filaments in place of gills. They require a fresh exami- 

 nation. 



Near these Nereides are grouped many genera, likewise 

 with slender body, and gills reduced to simple laminae, or 

 even to simple threads or tubercles. Many are destitute of 

 jaws or of tentacula. 



Phyllodoce, Sav., Nereiphylla, Blainv., have, like 

 the true nereides, an even number of tentacula, at the sides 

 of the head, and four or five small ones besides, in front. 

 They have eyes ; their large proboscis, furnished with a circle 

 of very short fleshy tubercles, shows no jaws, and they are 

 especially distinguished by having gills in the form of rather 

 broad leaves over-lapping each other in a single row on each 

 side of the body, and over them are spread some vessels ex- 

 tremely ramified. 



Nereis lamellifera Atlantica, Pall., Nov. act. Petrop. ii. 

 pi. V. fig. 11 — 18; perhaps the same as the Nereiphylle de 

 Pareto, Blainv., Diet, des Sc. Nat.; N.flava, Ott., Fab., 

 Soc. d'Hist. Nat. de Copenh. v. part i. pi. iv. f. 8 — 10. 



N. B. N. viridis, Mull., vers. pi. xl. of which M. Savigny, 

 without having seen it, proposes to form the genus EuLALiA 

 and the two EUNOMIA, Risso, Europ. Merid. iv. p. 420., 

 appear to me to be also phyllodoccd ; perhaps we should even 

 refer to them the Nereis pimiigera, Montag., Linn. Trans. 

 IX. vi. 3 ; and ihe Nereis stellifera. Mull., Zool. Dan. pi. Ixii. 

 f. 1., of which M. Savigny, without having seen it, proposes 

 to make a genus, under the name of Lepidia ; aud the 



