60 Prof. M'lntosh's Notes from the 



widely distributed Sabella penicillus, h., was procured at 

 Station No. 10, 1872, and Nos. 35 and 36, 1873, besides 

 being dredged in 220 fatlioras between Anticosti and the 

 shore. Potamilla reniformis, O. F. M., occurred between 

 Pictou Island and Cape Bear, Nos. 46-48, 1873, in firm 

 sandy tubes. Potamilla torelli, Malmgren, was common at 

 Stations Nos. 46-48, 1873, and between Pictou Island and 

 Cape Bear', No. 56, 1873. Chone duner'i, Malmgren, along 

 with a fragmentary Euchone, occurred at Station No. 2, 1872, 

 and Chone princei, sp. n., at various Stations in the Gulf of 

 St. Lawrence; whilf^t further nortli, in Godhavn Harbour, 

 Disco, a form approaching Chone fauveli, occurs. 



Euc/ione (?) lawrencii, sp. n. 



Dredged in the Gulf of St. Lawrence at Station 2, 1872. 



Only a fragment of the anterior end without the branchiae 

 is present along with Chone princei. The collar, which is 

 rather full, runs from the ventral surface, where it is entire, 

 Avith a very slight slope back ward, to the dorsal surface, 

 where its edge turns in to be attached to the middle line as 

 far forward as the base of the pillar for the branchiae, which 

 does not project so far as the rim of the collar. Eight seg- 

 ments are bristled anteriorly, and the dorsal furrow j)asses 

 downward between the eighth and ninth segments, cutting 

 the ninth obliquely to the median line, along which it is 

 continued. The species seems to be a large one, the body 

 being about 3 mm. in diameter anteriorly. The bristles 

 were absent. The loAver anterior hooks (PL II. fig. 11) had 

 stout curved shafts, in which a long enlargement below the 

 indistinct shoulder and a short neck occurred, the bold striae 

 of the shaft passing upward almost to the main fang, which 

 forms a little more than a right angle with the shaft, and 

 there were several (three or four) small teeth above it. 

 The posterior hooks differ from those of Chone, and more 

 nearly approach those of Euchone, having a nearly straight 

 and long posterior outline (PI. II. fig. 12), an almost straight 

 anterior outline, and a truncated base, the neck being finely 

 striated. 



Chone princei'^, sp. n. 



Dredged at Stations 2, 6, 9, 11, 1872, and Stations 35 

 and 36, 1873, in the Gulf of St. Lawrence, by Dr. AVhiteaves. 



When the branchiae are removed, the cephalic region 

 (PI. III. figs. 3 & 4) differs from Chone reayi in having 



* Named after my early student, fellow-worker, and friend, Prof. E, 

 E. Prince, now Dominion Commissioner of Fisheries for Canada. 



