Clare Island Survey — Archiannelida and Polychaeta. 47 75 



point. The flattened tip obviously represents the terminal piece which has 

 fused with the shaft. The fusion is not so complete in the anterior segments 

 as it is in the posterior. 



The muscular stomach occupies segments 11-13. 



One of the specimens from Clew Bay, obtained in May, was a mature 

 female, with bluish-green eggs in the body- cavity. The eggs commence in 

 the 29th segment. No capillary setae were present, so that the specimen 

 was probably not quite mature. 



This species is characterized by the elongate body, the structure of the 

 feet, and the unusual shape of the setae. It agrees with the sub-genus 

 Mesomystides of Czerniavsky in having three pairs of tentacular cirri, one 

 pair on the first segment, and two pairs on the second segment. It differs 

 from other species of this sub-genus, however, in the complete absence of 

 setae and spines from the second segment. This character, together with the 

 peculiar structure of the setae, may eventually necessitate the creation of a 

 new sub-genus ; but till other species are known, it may well remain in the 

 sub-genus Mesomystides. 



Habitat. — Clew Bay — Dredged in 24 fins., on a bottom of sand and 

 shells. 



Also found in Dingle Bay, in 20 fms., on a bottom of fine gravel. 



Mysta barbata Malmgren. 



1908. Mysta larbata. Mcintosh, p. 108. 



A single specimen was dredged in Blacksod Bay. In the structure of its 

 tentacular cirri it exhibited several peculiarities. On the light side there 

 were three cirri instead of two. On the left side the ventral cirrus had a 

 small swelling in the middle, from which projected a normal seta. The 

 ventral cirrus on the right side had a similar swelling, but no seta. 



Habitat. — Blacksod Bay — Dredged in 3 fathoms. 



Distribution. — Scotland; Arctic seas ; Norway; Behring's Straits. 



Eteone picta Quatrefages. 



1908. Eteone picta. Mcintosh, p. 100. 



Barely found in weeds on the shore. Common in dredged material. 



Habitat — Blacksod Bay — Found on shore on two occasions. Dredged 

 on two occasions in 1-8 fms. Clew Bay — Dredged in 

 Inishlyre Harbour, in 5 fms. ; near Dorinish ; in 10-12 fms., 

 off Old Head. Ballynakill Hakbouk— Dredged on four 

 occasions, in 2-4 fms. Bofix Harbour — Dredged in 1-4 

 fms. 



K2 



