POLYCHiETA OF THE L.M.B.C. DISTRICT. 245 



Syllis ar miliar is, (0. F. Miiller). 



Found at low water Puffin Island, August, 1889. 



Specific characters : — Dorsal cirri quite short, of 8 — 10 

 joints. Setae falcate with entire apex. Two more or less 

 interrupted transverse markings on the dorsum of each 

 segment. 



* Autolytus alexandri, Malmgren. 

 Hab : Tow-netted off Puffin Island. 



A single specimen, a male as shown by possessing the 

 curious forked palps characteristic, as Verrill remarks, of 

 the sex in this genus. The anterior falcate setae-bearing 

 segments numbered 14. The dorsal cirri were somewhat 

 shorter than depicted by Verrill* Length of body 12'5 mm. 



This species has not before been recorded from British 

 waters. 



Autolytus prolifer, (0. F. Miiller). 



Kecorded by Carrington as abundant at Southport. 



Ephesia gracilis, H. Eathke. 



Hab : S, P, 12, 14. 



This aberrant annelid is not uncommon under stones 

 at low water mark at Puffin Island. It is the Sphcero- 

 dorum fiavum of Oersted and the Pollicita peripatus of 

 Johnston and Carrington. 



F amily . — He sionid.e . 



* Psamathe fusca, Johnston. 



Hab : Puffin Id., and Lavan sands, Bangor ; under stones. 

 Two large specimens. The feet are uniramous, with 

 compound bristles. 



* Gastalia punctata, (Miiller). 

 Dredged off Anglesey, Whitsuntide, 1890. 



The foot is biramous, the notopodial setae being simple, 

 the neuropodial compound, thus sharply marking the 

 animal off from the preceding. 



# New England Annelida, 1881- 



