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Show 456 ANNELIDES. EuNICE, Cuv.(l) The branchire are also plumose, but the proboscis is well armed with three pair of differently formed horny jaws; each foot is furnished with two cirri and a bundle of setre, there are five tentacula above the mouth and two on the nape. In some species only do we find two small eyes. Eun. gigantea, Cuv. The largest of the known elides, being upwards of four feet in length. From the sea of the Antilles. Several smaller species are found on the coast of France(2). By the name of MARPHislE, M. Savigny distinguishes those species, otherwise very similar, in which the two tentacula on the nape are wanting; their upper cirrus is very short(S). A species at least closely allied to them,-N. tubicola, Mull., Zool. Dan., I, xviii, 1-5, inhabits a horny tube( 4). After these genera with complex branchire, we may place those where they are reduced to simple laminre or slight tubercles, or in which they are even replaced by cirri. Some of them are still allied to the Eunices, by the strong armature of their proboscis, and their azygous antennre. Such is the LYSIDIOE, Sav. Where, with jaws similar to those of the Eunices, and even more numerous and frequently azygous, the only brancbire consist of three tentacula and the cirri( 5). AGLAURA, Sav. The jaws of the Aglaurre are also numerous and azygous, con- (1) Eunice, the name of a Nereis in Apollodorus. M. Savigny makes it the name of a family, and calls the genus Leodice. M. de lllainville has changed these names, first to Brancltionereis, and then to Nl'/reidon. (2) Nereis norvegica, Gm., Mull., Zool. Dan., I, xxix, 1;-N. pinnata, lb., 2;N. cuprea, Bose., Ver., I, v, 1;--Leodice gallica, and L. ltispanica, Savig.-Add Leod. antennata, Sav., Annel., V, 1;-Eunice bellii, Aud., and Edw., Litt., de Ia Fr., Annel., pl. iii, f. 1-4;-Etm.lwrassii, lb., f. v, 11. (3) Nereis sanguinea, Montag., Lin. Trans., XI, pl. 3. ( 4) After the Eunices probably should come the Nereis crassa, Mull., Ver., pl. xii, which, without having seen it, M. de Blainville proposes to refer to the genus ETEONE, Sav., although the branchice of the latter are very different. (5) Lysidice Valentina, Sav.;-L. Olympia, Id.;-L. galatina, Id., Eg., Annel., p. 53. noRSIBRANCHIAT JE. 457 sisting of seven, nine, &c.; but their tentacula are either wanting or completely concealed; their branchire are also reduced to cirri(l ). NEREis, Cuv.-LYCORis, Sav. The true Nereides have an even number of tentacula, attached to the sides of the base of the head, and a little further forwards two others that are biarticulate, between which are two simple ones. Their brauchire consist of .smalllaminre between which is spread a network of vessels; each foot is also furnished with two tubercles, two fasciculi of setre, one cirrus above, and another beneath. Several species inhabit the coast of France(2). In the vicinity of these N ereides are grouped several genera in which the body is also slender, and the branehire are reduced to simple laminre, or even simple filaments or tubercles. The jaws or tentacula are wanting in some of them. PHYRLonoaE, 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 branchire resemble broad leaves, arranged in a single row on each side of the body, and overlapping each other; finely ramified vessels are distributed over them( 3). (1) I unite the AGLA.UR.lE and <ENONEs, Sav., and even certain species without tentacula, left among the Lysidices by Messrs Audouin and Edwards; .!l.glaura fulgida, Eg. Anne!., V, 2;-fEnone Iucida, Ib., f. 3. (2) Nereis versicolor, Gm., Mull., Wurm., VI;-N.fimbriata, Id., viii, 1-3;-.N. pelagica, Id., vii, l-3;-Terebella rubra, Gm., Bomme, Mem. de Fless., VI, 357, f. 4, A, B;-Lycoris mgyptia, Eg., Anne!., pl. iv, f. 1;-Lycoris nuntia, Id. lb. f. 2;-Nereis beaucoudrasii, Aud., and Edw., Littor. de la. Fr., Annel., pl. iv, f. 1-7;-Ne?·. pulsatoria, Ib., f. 8-13. N.B. The Nereia verrucosa, Mull., Ver., pl. vii, and incisa, Ott., Fabr., Soc. Hist. Nat. Copenhag., V, part I, pl. iv, f. 1-3, seem to have the head of a Lycoris, but with long filaments in place of branchice; they require examination. (3) Nereislamellifera atlantica, Pall., Nov. Act. Petrop., II, pl. v, f. 11-18, perhaps the same as the Nereipltylle de Pareto, Blainv., Diet. des Sc. Nat. ;-N. jlava, Ott., Fabr., Soc. Hist. Nat. Copenhag., V, part I, pl. iv, f. 8-10. N.B. TheN. viridia, Mull., Ver., pl. xi, of which, without having seen it, M. Savigny proposes to make the genus EuLALIA., and the two EuNOMIJE, Risso, Europ. Merid., IV, p. 420, also appear to me to be Phyllodoces; perhaps we should also so consider the Nereie pinnigera, Montag., Lin. Trans., IX, vi, 3; and the VoL. II.-3 H |