148 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



SyUis arm ilia ris, (0. F. MiiUer). 



Found at low water Puliin Island, August, 1889. 



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

 joints. Seta? falcate with entire apex. Two more or less 

 interrupted transverse markings on the dorsum of each 

 segment. 



* Autohjtus alexandvi, Malmgi'en. 

 Hab : Tow-netted off Puffin Island. 



A single specimen, a male as shown by possessing the 

 curious forked palps characteristic, as Yerrill remarks, of 

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

 segments numbered II. The dorsal cirri were somewhat 

 shorter than depicted by Yerrill* Length of body 1*2' 5 mm. 



This species has not before been recorded from British 

 waters. 



Autohjtus proUfer, (0. F. MiiUer). 



Eecorded by Carrington as abundant at Southport. 



Ephesia gracilis, H. Rathke. 



Hab : S, P, 12, II. 



This aberrant annelid is not uncommon under stones 

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

 dorum Jiavum of Oersted and the PoIIicita perip^atus of 

 Johnston and Carrington. 



Family. — Hesioxid.e. 



* Psd m a th e fuse a , Johnston . 



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

 Two large specimens. The feet are uniramous. with 

 compound bristles. 



* Castalia jyuncfafa, (Miiller). 

 Dredged off Anglesey, ^Mlitsmltide, 1890. 



The foot is biramous, the notopodial set^ being simple, 

 the neuropodial compomid, thus sharply marking the 

 animal off' from the preceding. 



* Xew England Annelida. ISSl- 



