Gatty Marine Lahoratonj, St. Andrews. 15 



Sjiha'Todorum claparedii, Grcef, and -S'. minntnm, Webster 

 & iJeuedict, exami)les of the 8i)li2erodoridjc, corae also from 

 the West Coast of Ireland [Southern). The former appears 

 to be so closely allied to S. minutum that liesitation is felt 

 in separating them. The bristles of this and S. minutum 

 di Her very little, and the only other featnre which was noticed 

 was the more regular arrangement and size of the papiliai in 

 6'. minutum. S. clupuredii may be a young form develojjing 

 reproductive elements. The material at hand, for Avhich I 

 have to thank Mr. Southern, did not suffice to afford a satis- 

 factory conclusion, and, therefore, his description was alone 

 available. 



In tiie family of the Paraouidse, Cerruti, besides the 

 Ariridea jejf'reysii, Xl'Intosh, already described, the Paraonis 

 (Aricideaf) lyra of Soutliern has to be added, from the 

 surface tow-net in Galway and Dingle Bays. The specimens 

 range from 12-20 mm. and from ninety to one hundred 

 and five bristled segments. In this the head is somewhat 

 hluntly conical, with a low rounded papilla bearing stitf 

 cilia on the tip, and having yellowish pigment. ^iuchal 

 organs brownish, large and conspicuous, sloping obliquely 

 backward and inward from the mid-lateral region. iJody 

 widest in the middle, tapering toward each end, 20 mm. 

 long, and with ninety-tivQ to one hundred and live seg- 

 ments. Three anterior segments have capillary bribtles and 

 small dorsal cirri, but the latter gradually increase in size 

 and are long and slender in the posterior segments. Anal 

 segment rounded, with three slender subulate cirri — two 

 dorso-lateral and one median ventral ; a pair of cirri fixed 

 to the anterior border, but may represent the last pair of 

 dorsal cirri. Anteriorly the dorsal and ventral bristles are 

 almost equal in length, and continue so to the posterior end 

 in the immature, but in the mature male the ventral increase 

 in length about the fifteenth to twentieth segment, whilst 

 the dorsal become shorter. The bristles of the male are 

 more prominent than in the female, exceeding the width of 

 body, especially posteriorly. The dorsal cirri are placed 

 behind the fascicle of bristles. Capillary bristles slender, 

 devoid of wings, and the longer ventral bristles in the male 

 are striated longitudinally. On the lower side of the front 

 row of the dorsal tuft are one to three short bristles with 

 lyrate tips, one end being longer than the other, and with a 

 row of spines on its inner margin ; this type commences 

 in the fourth segment and continues to the tail. In the 

 fourth foot the doisal bristles are slightly longer than the 

 ventral ; in the fiftieth foot the ventral are thrice as long. 



