LEPIDONOTUS. 107 



surrounding the spine. The spine tapers insensibly to an obtuse 

 point, is smooth, and of a pale yellow colour : the bristles are of a 

 rich burnished brown colour, with a round shank which grows a little 

 thicker upwards, and is terminated with a curved cutting point like 

 a pruning-knife ; in most of them there is also a tooth-like process 

 on the inner side beneath this point (PL XI. fig. a). The cirrus of 

 the foot does not reach its apex, excepting that of the first pairs ; it 

 is fleshy, setaceous, and of a pale colour. The dorsal branch of all 

 the feet has an upward direction, and cannot be used as an organ of 

 jirogression along the ground : that of the squamous feet is armed 

 with two bundles of bristles (6), each proceeding from a distinct 

 tubercle ; the innermost or dorsad brush consists of many slender, 

 golden-yellow bristles, arranged in a fan-shaped manner ; they are 

 comparatively short, curved like the italic letter /, and roughened 

 with minute granulations on their upper half (c). The bristles of 

 the other brush, placed between the dorsad one and the proper foot, 

 are remarkable for their stoutness and length ; they are of a rich 

 dark brown colour, straight, and terminated with a lanceolate point, 

 which is notched on each side with four reverted barbs, so that the 

 bristle resembles the barbed arrow or spear of the South-Sea islanders 

 (d). The notches are not opposite, but alternate, and they are 

 enclosed within a plain sheath, consisting of two dilated valves which 

 shut upon them (e). The cirrigerous foot has a single fan-shaped 

 brush of bristles only ; the bristles are simple and curved like those 

 of the dorsad fascicles of the squamous feet, but they are more 

 numerous, slenderer, longer, of a paler colour, and quite smooth ; 

 they are unequal in length, some of them very fine and hair-like, 

 and the whole brush is usually matted and soiled with extraneous 

 matters. Length of the worm 2 inches ; breadth ^^ths. 

 («) The English Channel, Joshua Alder, Esq. 



Plate XI. Fig. a. Spine, b. Foot. c. Spine, d h e. Bristles. 



2. LEPIDONOTUS. 



Lepidonotus, Leach in Ann. Phil. xiv. 205 (1819), and in Supp. En- 

 cyclop. Brit. i. 452. 



Lepidonote, Oersted, Annul. Dan. Consp. 12; Annul. Dorsibr. 11. 



Polynoe *, Savigny, Syst. Annel. 20. Lam. An. s. Vert. v. 308. Aud. 

 8f M.-Edw. Litt. de la France, ii. 74. Cuv. Regn. Anim. iii. 20/. 

 Johnston in Ann. Nat. Hist. ii. 428 & 431. Williams, Rep. Erit. 

 Assoc. 1851, 217. 



Eumolphe, Blainville in Diet, des Sc. not. Ivii. 457. 



Char. Body oblong, flattened, obtuse and rounded at both ends, 

 composed of a definite number of segments, the back covered with 

 two rows of scales : head distinct, with two pairs of eyes on the 

 sinciput : proboscis fringed with simple tentacles at the orifice, aud 

 furnished with two jaws : antennae 3 ; palpi 2 ; tentacula two on 



* Polynoe — one of the Nereids. Risso writes the name Polinoe (I'Europ. 

 Merid. iv. 414). 



