from the North Sea and adjacent parts. 213 



than anteriorly. The dorsum is more convex than tlic 

 ventrum, l)Ut the convexity i.s lo.st in the camlal re:;i<»ii, 

 which i.s somewhat Hat an I strap-shapeil and terminate.^ in 

 two anal cirri. 



Anteriorly tho hody has a rich {:joldei:-brown colour, 

 which "gradually chantijes to yellowish white posteriorly. 

 The body-wall is thin and transparent, and the simple 

 8trai<iht gut with its contents shines through, thus reminding 

 one of the condition prevalent in the posterior region of 

 many of the Eunicidre. 



The ])rol)oscis is fairly long, being about one-third the 

 length of the entire animal, and presents a hard anl very 

 muscular appearance. It is richly covered with minute 

 pajjilb^, which, according to the Monograph*, are filiform, 

 with crenated edges. The tip, which is much wider than 

 the base, roughly forms a square, at whose corners is placed 

 a black, spurred, powerful tooth. Tho teeth are sunk in 

 bulb-like muscular pads, the opening of the proboscis being 

 where the pads meet in the centre. The organ is pinkish in 

 colour and has many minute transverse striae. 



Tho feet are slender and appear on the anterior ring of the 

 segment, a condition reversed in Eumenia jeffreysii, where 

 the feet are borne on the posterior ring. They are white in 

 colour and semitransparent. The example is so small that 

 the anterior feet could not be removed without incurring 

 serious damage to the animal ; however, a lengthy account 

 of them can be had in the Monograph. The feet from the 

 twentieth were found to be quite typical, although the 

 bristles were much more slender than those of the type-series. 

 The specimen was not mature, but in this species epitokous 

 forms appear which have larger bodies, longer and more 

 prominently marked feet, and more attenuate bristles. From 

 observation tho animals ripen and shed their sexual products 

 in the month of July. 



Family AriciidaB. 

 Genus Aricia, Savigny, 1820. 



Aricia cuvieri, Audouin and Edwards, 1833. 



The distribution of the above family is very uncertain, 

 and several well-known European forms extend to the shores 

 of North America, where they have receiveil different names. 

 The members of the family frccjuent deep or inshore waters. 



* Vide 'Mouogrnpli,' vol. ii, part ii. \>. 460. 



