Clare Island Survey — Arcldannelida and Polycliaeta. 47 Ol 



parapodium. When looked at from above, the foot seems to be bifid, this 

 appearance being caused by the two cylindrical papillae. The setae 

 (fig. 21e) are slightly curved. The tips of the shafts are swollen and 

 bevelled, with a row of minute serrations along one edge. The terminal 

 pieces are of medium size, curved at the tip. 



The barrel-shaped stomach (fig. 21a) occupies 2^—3 segments. It is dark 

 in colour, furrowed along one side, and transversely striated. It is frequently 

 everted in preserved specimens. The anterior margin is smooth, with a 

 thickened rim. 



Mature specimens of both sexes were found in June, July, and August. 

 They were usually taken in the surface tow-net at night. 



I have compared the Irish specimens with a number of individuals 

 of Epliesia ininuta, named by Webster and Benedict, belonging to the 

 United States National Museum, and with others in the Museum of the 

 Union College. All the American specimens had been collected at Eastport, 

 Maine. I was unable to find any distinction of specific value between the 

 Irish and American specimens. Webster and Benedict state that the stomach 

 occupies four segments. An examination of the American specimens showed 

 that this character is very variable, depending on the degree of contraction 

 of the individual, and the number of segments occupied by the stomach 

 ranged from three to six. In the Irish specimens the usual number of 

 segments was three. The median tentacle, which the American naturalists 

 describe as placed "between the eyes," is really at some distance in front 

 of them. The " reddish purple " corpuscles noted in the body-cavity are 

 eggs. 



Habitat. — Blacksod Bay— A single specimen in Laminaria roots from 

 Barranagh. Clew Bay— Dredged in 24 fms., on a bottom 

 of sand and shells. Ballynakill Hahboui: — Taken in the 

 surface tow-net at night on four occasions. Dredged on 

 two occasions, in 2-8 fms. 



Distribution. — Eastport, Maine, U.S.A. ; Spitsbergen. 



Family GLYCERIDAE. 

 Glycera lapidum Quatrefages. 

 1910. Glycera lapidum. Mcintosh, p. 477. 



This species was not found in Blacksod Bay. It is a characteristic 

 member of the fauna living on the trawling grounds near Clare Island, thai 

 is to say, on a bottom of sand. 



JIabitat. — Clew Bay— Dredged on ten occasions, in 11-2S fms. Bofin 

 Harbour — Dredged outside the harbour, in 15-16 fms. 

 M 2 



