Phyllodoce gigantea. 53 



toothed and hairy on the inner margin, with a brush of hairs above the 

 claw. Claw long, slightly curved, serrulate. JFrist dilated with a semi- 

 lunar fissure: the arm long and straight. Legs monodactyle, five- 

 jointed, spinous. The two anterior pair with the claw turned back- 

 wards; the first joint elongated, dilated outwardly, the second very short, 

 third and fourth nearly equal in length, and the fifth longer. The other 

 legs have the claw turned in a contrary direction, with the thigh dilated 

 and having attached to it a broad squamose plate. They are also spinous, 

 and the spines spring from indentations on the joints. Behind the legs 

 are the natatory fins, of which there are three pairs, each with a broad 

 stem, bearing two branches beautifully ciliated with long hairs. On the 

 sides of the tail are the style-processes, three on each side, and each 

 consisting of a stem on which are articulated two lanceolate processes, 

 unequal in length, and spinous on the edges. 



With this species I have been long familiar, and had always considered 

 it as the G. marinus of Dr. Leach, until I observed that he describes that 

 species as having the upper process of the style process very short ; a 

 character, which seems not at all applicable to our animal, in which, 

 though unequal, they are tolerably long, as much so indeed as in those 

 species which Dr. Leach places in his second section. His description is 

 otherwise so brief that no further comparison can be drawn ; but so much 

 reliance is placed on the character adduced, that we feel ourselves war- 

 ranted in considering the two species as quite distinct. Our animal in- 

 habits the sea, and is common near Berwick. It has never been found 

 under stones, or in pools left by the recess of the tide. 



CI. Annelides 



Ord. An. antennees . , 



„ TVTr , ^ > Lamarck. 



l*am. Nereidees 



Gen. Phyllodoce 



1. Phyll. gigantea. 



Phyll. virescenti-purpurea, margaritacea ; dorso obscure maculate; la- 

 mellis branchialibus dolabriformibus. 

 Hah, Mare Britannicum. 



