Si)Ui'iiiiKN — 'i'lic Marine iVuniia {Annelida) nf Duldin Baif. 2''J5 



Scolecolepis vulgaris (Johustoii). 

 1896. Mesuil. Tom. cit., p. lo8. 

 Howth, south shore, 6, x, '09 ; north shore, 10, x, '09. 

 Common in the sandy patches round Howth Head. 

 General Distribution. — Great Britain ; North Sea; France ; Mediterranean; 

 Eastern North America. 



Spio martinensis, Mesuil. 



1896. Mesuil. Tom. cit., p. 122. 



Several fragments of a Spio found between tide-marks on Saudymount 

 Strand differ from any recorded British species, and may be provisionally 

 referred to S. martinensis, which Mesuil found on the coasts of France. 

 Mesuil's species differs from the widespread S. filicornis, Fabricius, in 

 having a rounded prostomium, no occipital tentacle, and in several other 

 points which are more apparent than real. In the structure of the head the 

 Saudymount specimens agree with aS'. martinensis. There are four distinct 

 eyes, the anterior pair being reuiform, and further apart than the posterior 

 pair, which are cii'cular. Between each lateral pair there is a patch of 

 pigment formed of small and black grains, whicli under low magnification has 

 the appearance of a third pair of eyes. Another character which distinguishes 

 these specimens from S. martinensis is the structure of the ventral hooks, 

 the upper fang of which is minutely bifid at the tip. The setae are frequently 

 coated with red deposit, and when this deposit is only present in a small 

 quantity, the setae have the punctuated appearance which shows in Mesnil's 

 figures (torn, cit., PI. vii., figs. 11, 12, &c.), and which Mcintosh' regards as 

 an important distinction from S. fiHcornis. 



Aonides oxycephala (Sars). 

 1896. Mesuil. Tom. cit., p. 242. 

 Balscaddon Bay, Howth. October, 1909. 

 This species has not previously been recorded from Ireland. 

 General Distribution. — Plymouth ; Norway ; France. 



Pygospio elegans, Claparede. 



1863. Claparede. Beobachtungen, &c., p. 37. 



Howth, south shore, 6, x, '09. In slender sandy tubes, massed in fissures 

 of the schist. 



Sandymount Strand, November, 1909. In sandy tubes in the sand. 

 General Distribution. — Great Britain ; France ; Eastern North America. 



1 Ann. Mag. Nat. Hist. (8), vol. iii, p. 163. 



