47 34 Proceedings of the Royal Irish Academy. 



Eurysyllis paradoxa (Claparede). 



1910. E.'p. Mcintosh, p. 241. 



This species seems to be 'widely spread on the Irish coast, though it has 

 not previously been recorded. 



Habitat. — Blacksod Bay — Taken on shore on 4 occasions, in Laminaria 

 roots. Clew Bay — Taken in surface tow-net in Hillary 

 Harbour. Dredged in 9-11 fins., in Laminaria roots. 



Distribution. — Torquay ; France ; Kattegat ; Madeira ; Mediterranean. 



Syllis (Typosyllis) armillaris (Miiller). 



1908. S. a. Mcintosh, p. 188. 1886. Syllis (TypoysUis) alternosetosa. 



de St.-Joseph, p. 150. 1910. Pionosyllis alternosetosa. Mcintosh, p. 238. 



1913. S. a. Mcintosh, p. 83. 



Mcintosh has recently expressed the opinion that these two species are 

 identical (1913, p. 83). I have examined specimens of the so-called 

 S. alternosetosa from Plymouth, Torquay, and the deeper parts of the English 

 Channel, and finally de St.-Joseph's types in the Paris Museum, and I am 

 able to confirm Mcintosh's opinion. 



This species is one of the most abundant on the Irish coasts. 

 Habitat. — Blacksod Bay — On the shore under stones and in Laminaria 

 roots, on 19 occasions. Dredged on 6 occasions, in 1-6 fins. 

 Clew Bay— Shores of Clare Island. Dredged on 11 

 occasions, in 5-2S fms. Ballyxaxill Haebohr — Dredged 

 in 1-3 fms. 

 Distribution. — British Isles ; Arctic seas ; Scandinavia ; North Sea ; 

 Behring's Sea; Madeira; France. 



Syllis (Typosyllis) hyalina Grube. 



1908. Pionosyllis lujalina, Mcintosh, p. 166. 



This species is very closely related to Syllis prolifera Krohn, the only 

 points which distinguish it being the shorter cirri, and the presence of simple 

 pointed setae in the dorsal and ventral regions of the posterior feet, the 

 corresponding setae in .S'. prolifera being bifid. These distinctions are not of 

 much weight, as a variety of S. prolifera is of frequent occurrence, which 

 has very short cirri, with few articulations. 



Habitat.— Blacksod Bay — Dredged in 4-6 fms. 



Distrihition, — Co. Dublin; Plymouth; Norway; Madeira; Mediterranean. 



