SoiniiKHN — The Murine Worms {Annelida) of DubUn Baj. 219 



ami the eoutlitious which iletermme this are <.\\\\iv. unkiiowu. At present 

 there appears to be some doubt as to whether the main current in the Irish 

 Sea runs north or south. The position of tlie last land-connexion with Great 

 Britain must ha^'e also been an important factor, as the faunas to the north 

 aud south of it would arrive by different routes. 



No attempt has been made to give the full s}nronymy of the various 

 species. Instead, a single reference is gi^•en to some standard monograph 

 where the species is fully described and figured. 



Where a person's name foUows a locality, it refers to the investigator 

 who made the record. 



After records of species collected by the Scientific Stall' of the Irish 

 Fisheries Branch, the station number and other particidars are given in 

 brackets. For fuller information refereirce must be made to the "List of 

 Stations " published by the Fisheries Branch. 



Class AECHIANNELIDA. 

 Dinophilus taeniatus, Harmer. 



1889-90. Harmer, Journ. Mar. Biol. Assoc, N.S., vol. i., p. 1 ] 9. 



Sandycove. 28, iii, '09. In rock-pools amongst sea-weeds. 



This species is easily recognized, especially in its young stages. It has 

 five body-segments, each with two rings of cilia, and the ovaries are bilolied. 

 The epidermis is full of clear glands, and the colour is bright red. As usual, 

 the species could only be found iu the spring months. It has only been 

 recorded from the British Isles. 



Gctvcral DistrihvMon. —British Isles (Plymouth, Valencia, Galway Bay). 



Protodi'ilus flavocapitatus (Uljanin). 



1908. Pierantoni. Fauna u. flora des Golfes von Neapel, vol. xxxi., 

 Protodrilus, p. 167. 



This species, which is the first of its genus to be recorded from Ireland, 

 was found in rock-pools at Malahide iu February, 1908. The specimens were 

 all immature, and had been preserved and mounted in balsam some months 

 before I tried to determine the species ; so I sent them to Professor Pier- 

 antoni, who has recently published an elaborate monograph on the group (tom. 

 cit.). He informed me that they belonged to the species Protodrilus Jiavo- 

 «yjJM«s (Uljanin), a species only previouisly found at Sebastopol and Naples. 

 They agree with this species in having rings of cilia segmentally arranged, in 

 having two ventral eyes in the adult stage, and in having two caudal lobes. 

 They were 4-6 mm. long. At the tip of the prostomium there was a conspi- 

 cuous bunch of cilia. Cilia are scattered all over the body, as well as in 



