PHYLLODOCID^. 1/3 



only smooth at the base. A high magnifier is required to see the 

 serratures. 



Obs. Smaller than the preceding, from which it is readily distin- 

 guished by the length and number of its fasciculated bristles, which 

 exceed the length of the entire foot, and protrude far beyond the 

 margin of the lamella. They become quite black in spirits. The 

 upper half of the simple ones is delicately serrulated along one edge ; 

 and the terminal piece of the compound ones is equally serrulated, 

 as well as the upper end of the shaft. 



{a) Firth of Forth, Lieut. Thomas y R.N. 



(b) Berwick Bay, Dr. Johnston. 



(e) Holy Island, Dr. Johnston. 



3. N. Hombergii. 



Nephthys Hombergii, Cuv. Regn. Anim. iii. 203. Savign. Syst. Annel. 

 34. Lam. An. s. Vert. v. 313 ; 2de edit. v. 552. And. ^ M.-Edw. 

 Lift, de la France, ii. 235. pi. 5 b. f. 1-6; Ann. des Sc. nat. xxviii. 

 257. pi. 17. f. 1-6. Blainv. Diet, des Sc. nat. Ivii. 483. Williams 

 in Rep. Brit. Assoc. 1851, 188, 199, 235, and in Ann. 8f Mag. Nat. 

 Hist. ser. 2. xii. 408. pi. 14. f. 7. 



Hab. The littoral region. 



Obs. I have given no character of this species, of which I have 

 not seen a specimen ; nor am I satisfied with the evidence of its 

 being a native. 



Fam. VI. PHYLLODOCID^*. 



Phyllodocid^, Williams, Rep. Brit. Assoc. 1851, 211 & 232. 

 Phyllodocea, Grube, Fam. Annel. 54. 



Char, Body scolopendriform, with many or numerous segments 

 deeply incised at their junctions ; the anal segment with two styles : 

 head small, flattened, sometimes deeply inserted into the post-occi- 

 pital segment, and not distinctly separated from it, with four or, 

 rarely, two filiform antennae on the front margin, and sometimes a 

 fifth on the vertex: eyes two or four: post-occipital and the two 

 following segments with tentacular cirri in two, four, or eight pairs : 

 mouth with a long cylindrical or clavate bisegmented proboscis, 

 encircled with papillae at the orifice: feet protuberant, simple or, 



* Agassiz says, from <pv\\ov, a leaf, and SoKeco, to resemble ; but it is the 

 name of a sea-nymph, of the train of Cyrene. — Virg. Georg. iv. 336. It is syn- 

 onymous with the Nereiphylle of Blainville, but not with the Phyllodoce of Ran- 

 zani. A genus of plants has been named Philodice, and to those who think it 

 against the canon to give the same name to any subjects of Fauna and Flora, this 

 might be a reason to prefer the nomenclature of Blainville. Risso writes the 

 name Phyllidoce. 



