COPEPODA 219 



In Denmark Strait 



'9/ 6 1904 St. 152 65oo L. N. 28 10 L. W. Yt. 1000 M. Wire i f ?. 

 2 % 1904 St. 153 6527 L. N. 27i2 L. W. Yt. ? i f?. 



In the Atlantic, south of Iceland 



V 9 1904 St. 285 6249 L. N. i846 L. W. 3 frf 1 , i f?. 



'% 1904 St. 180 6i34 L. N. I905 L. W. Yt. 1800 M. Wire i f?. 



"; 7 1904 St. 183. 6i3o L. N. I7o8 L. W. Yt. 1800 M. Wire 2 f?. 



'5/5 1904 St. 104 6247 L. N. i503 L. W. 2 f?, i fo*. 



In the Iceland-Fseroe channel 



2 9/ 8 1905 St. 164 6i2o L. N. iioo L. W. Yt. 300 M. Wire i f<?. 



2 9/ 8 1905 St. 165 6ooo L. N. io35 L. W. Yt. ? r f ?, i f o*. 



22 /s 1904 St. 99 6ii5 L. N. 935 L. W. Yt. 1700 M. Wire i IJ. 



/ 5 1904 St. 78 6io7 L. N. 930 L. W. if?. 



Outside the Ingolf area 



'5/6 1905 St. 82 5i32 L. N. i203 L. W. Yt. 800 M. Wire i f ?, i y? (V). 



Yt. 1200 M. Wire 10 f ?, i fc?, 2yd 1 (V). 



V 9 1905 St. 167 5746 I v . N. 9 55 L. W. Yt. 1500 M. Wire 6 f ?, i yc ? (V). 



8 /6 1905 St. 72 5752 L. N. 9 53 L. W. Yt. 1500 M. Wire 5 f?, 9 f <?. 



2 % 1905 St. 88 4809 L. N. 83O I v . W. Yt. 300 M. Wire i f c?, 3 y? (V). 



Distribution. This species is by Farran recorded as fairly common on the west coast of Ire- 

 land "at depths of from 330 to 1150 fathoms"; it has been recorded by the Monaco Expedition, and 

 from the gulf of Guinea. The records from the South Atlantic, the Pacific and the Indian Ocean cannot 

 be accepted. 



Remarks. That the species is identical with the male of Sc. securifrons Scott and with Farran's 

 S. persecans seems not to be doubtful. I think, that Farran, in contrast to Sars, is right in apply- 

 ing the name Sc. securifrons to the species with the pointed lateral corner, as Canu, who was the 

 first to rediscover the species, has done so. Farran has identified the Atlantic species with Gies- 

 brecht's S. persecans, and, as will be seen in the nomenclature of Plate VI, I once thought he 

 was right. But on full consideration I feel obliged to follow A. Scott, and admit that S. persecans is 

 another species, and I have accordingly given the Atlantic species the name 5". Tliorii in appreciation 

 of the good work of this expedition. The female of S. persecans has been only imperfectly described 

 by Esterly, but the fifth foot seems to be somewhat different. The male of S. persecans is charac- 

 terized "by the moderately long spines on the rami of the rostrum", and by several structures in the 



structure of the fifth foot. 



28* 



