462 AMPHINOME LONGOSETOSA. 



plume; downwards those setae diminish gradually in length 

 and pass into short spines. — d. rare, brown bristles, regu- 

 larly beset over the whole length with several rows of 

 short, fine hairs. 



The only bristles , as far as I know , showing any resem- 

 blance with those of A. longosetosa , are the bristles in the 

 dorsal fascicle of the genus Jphione. 



Genus Jtertnodice Kinberg. 



Hermodice carunadata Pallas. — Baird, loc. cit. p. 219, 

 pi. IV, figs. 3 a and h. — M'Intosh, loc. cit. p. 24, pi. 

 V; pi. IIIa, figs. 1—4. 



Two small specimens , in a bad state of preservation , procu- 

 red from Curasao by the care of Mr. Neervoort van de Poll. 



The alternate arrangement of the dorsal bristle- tufts is 

 very striking. The bristles quite agree in their structure with 

 the figures given by Baird and M'Intosh , not with those ot 

 Langerhans ^) ; only in some of the ventral bristles the spur 

 is totally wanting and there is no trace of bifurcation. 

 Among these ventral bristles there are a few hastate spines , 

 resembling those of Eurythoë. 



Genus Eurythoë Kinberg. 



Eurythoë alcyonia Sav. (PI. 7, figs, 1 — 9). — Savigny, 

 Système des Annélides, p. 62, pi. II, fig. 3. — Baird, 

 loc. cit. p. 222. 



The body is flattened, with the greatest breadth in the 

 middle, gradually diminishing anteriorly and posteriorly; 

 a groove rans along the ventral side. The cephalic lobe is 

 broad in front, notched, bearing on its lateral and its dor- 

 sal side a pair of tentacles which , stretched forward , pass 

 a good deal beyond the front-side of the lobe; the median, 

 unpaired tentacle , situated exactly in front of the caruncle , 



1) Loc. cit. pi. XIV , fig. 8 a and b. 



Notes from the Xjeyden IMuseutn , "Vol. VIII, 



