Gatty Marine Laboratory, St. Andrews. 15 
Spherodorum claparedii, Greef, and S. minutum, Webster 
& Benedict, examples of the Sphzrodoridz, come also from 
the West Coast of Ireland (Southern). The former appears 
to be so closely allied to S. minutum that hesitation is felt 
in separating them. The bristles of this and S. minutum 
differ very little, and the only other feature which was noticed 
was the more regular arrangement and size of the papilla in 
S.minutum. SS. claparedii may be a young form developing 
reproductive elements. The material at hand, for which | 
have to thank Mr. Southern, did not suffice to afford a satis- 
factory conclusion, and, therefore, his description was alone 
available. 
In the family of the Paraonide, Cerruti, besides the 
Aricidea jefreysii, M‘Intosh, already described, the Paraonis 
(Aricidea 7) lyra of Southern 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 
bluntly conical, with a low rounded papilla bearing stiff 
cilia on the tip, and having yellowish pigment. Nuchal 
orgaus brownish, large and conspicuous, sloping obliquely 
backward and inward from the mid-lateral region. Body 
widest in the middle, tapering toward each end, 20 mm. 
long, and with ninety-five to one hundred and five seg- 
ments. Three anterior segments have capillary bristles 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 dorsal bristles are slightly longer than the 
ventral ; in the fiftieth foot tle ventral are thrice as long. 
