OF PLYMOUTH AND THE ENGLISH CHANNEL. 225 



Ednoa, Malmgrm. 



Eyes postero-lateral or lateral. 

 Elytra, surface tuberculate, margin ciliate. 

 Dorsal clifetcB, minutely spinulous, tip pointed and bare. 

 Ventral chaetcT- somewhat longer, tip smooth, hooked, spinous rows 

 large. 



EvARNE, Malmgren. 



Eyes large, close together, postero-lateral in position. 

 Dorsal chsetse shorter than ventral, spinous rows large. 

 Ventral chaetas very long, with minutely bifid tips. 



PflYLLANTINOE. 



Cephalic appendages and elytra unknown. 



Prostomium short and broad, median tentacle arising far backwards 

 between the lobes. Eyes postero-lateral. 



Fifteen elytra, not completely covering the body. About 40 segments. 



Lagisca, Malmgren. 



Body narrow and attenuate posteriorly. 

 Last 9-12 segments not covered by elytra. 



SCALISETOSUS, McIntosTl. 



Elytra cover dorsum in front, but leave it uncovered posteriorly. 

 Translucent. 



Fifteen elytra, on anterior part of body only. About 100 segments. 



PoLYNOE, Savigny. 



Palps, with dense rows of clavate papilleB. 



Elytra, with broad belt of papillie on anterior surface. 



Enipo, Malmgren. 



Palps and tentacles smooth. 

 Elytra smooth, subcircular. 



Eighteen elytra, 



AcANTHiGOLEPis, Noriiian MS. 



Elytra coarsely spinous, covering dorsum entirely. 

 Prostomium cleft to form two pointed lobes. 

 Tentacles and cirri ciliate. 



Halosydna. 



Elytra large, soft, with frilled outer border. 



Prostomium continuous, with tentacles ; these and palps smooth, 



Nuchal collar with prominent flaps. 



