﻿76 



COPEPODA 



The pes II has the articular membrane between Re I and II distinct anteriorly, bnt missing posteriorly; 

 the hasp. II pes IV has, in addition to marginal row of setae, posteriorly and just proximally to the Si a 

 transverse row of 4 short spines (PI. II fig. i c), which corresponds to the two spines mentioned by 

 Giesbrecht but not by Sars and Scott. Glandular pores were found at the base of Se Re II and 

 Se 3 Re III in the three posterior pair of legs, and in addition to these a pore was found at the base 

 of Se Re I in pes III-IV. 



The labriim is in lateral view like Sars' figure, with a short anterior elevation, which by a 

 low incision is separated from the labruni projier; this is, anteriorly, evenly convex and, posteriorly 

 towards the free margin, .slightly concave. In front of the marginal row of setae along the free poste- 

 rior margin no setae were found. The oral surface of the labrum is most like that of Cjaidi/is\ the 

 longitudinal group i consists of a single series of fairly long hairs; the groups 2—5 are only in- 

 distinctly separated, and only the groups 4 — 5 are 2—3 setae deep. The lamina labialis and the setae 

 in front of it have a structure as shown in figure i d. 



Y? (V). Size of specimen from St. 45 1-58 mm., anterior division 1-23 mm.; urosome 0-35 mm. 



This stage differs distinctly from that of the adult female by the structure of the abdomen. 

 The head is well separated from the first thoracic tergite, and the fifth from the fourth; the appendages 

 do not show any difference of importance, except the even less developed articulation between Ri I — II 

 pes II, and the wanting .spines in besipodite II pes IV, which has however the usual marginal setae. 



Occurrence. The Ingolf Expedition has gathered this species at the following stations viz: 



V7 1895 vSt. 27 64°54 L. N. 55°ioL. W. V. 200-0 fm. Temp, at surface 3-9° C. i f?. 



2% 1895 St. 25 63^30 L. N. 54°25 L. W. V'. 200-0 fm. 2-9° C. i f ?. 



377 1895 St. 38 59°i2 h. N. 5i°o6 L. W. V'. 100—0 fm. 10° C. i f?. 



'8/61895 St. 19 6o°29 L. N. 34°i4 L. W. V''. 300-0 fm. 9° C. 6 f?. 



^% 1895 St. II 64^34 L. N. 3i°i2 L. W. V. 200— ofm. 8-2" C. if?. 



'Vj 1896 St. 47 6i"32 L. N. i3°4o L. W. V. 100— o fm. 10° C. 15 f?. 



'Vs 1896 St. 52 63°57 Iv. N. i3°32 L. W. V. 200-0 fm. 8-3° C. i f ?. 



^% 1896 St. 57 63°37 L. N. i3°03 L. W. V'. 100— o fm. 8-2° C. 11 f?. 



^°/5 1896 St. 59 65° L.N. ii°i6L. W. Apst. 12 1-5° C. if?. 



'Vs 1896 St. 45 6i°32lv. N. 9°43L. W. V. 100— o fm. 9-1" C. 2f?, iy?(V). 



In addition to these Captain Wan del has 1891 at 67°07 L. N. ii°4i L,. W. taken i f?, and the 

 Danish East Greenland Expedit. 1900 10 p. m. F. 403 has gathered a single female 6o°29 L. N. 

 i2°io L. W. 



Distribution. This species is according to Farran "a characteristic inhabitant of the lower 

 layers of the North-East Atlantic off the coast of Ireland and Scotland": It has been found in the cold 

 as well as in the warm area of the Faeroe channel, the northern part of the North Sea, and several 

 of the Norwegian fjords. It has been taken off the Finraark coast N. W. of Nordkyn and north of 

 Iceland. The records of the Ingolf. Exp. show that it is akso found in deep waters, probably as a 

 member of the Atlantic fauna, in the Iceland-Fa^roe channel, Denmark and Davis Straits. This 

 .species seems to have a very wide distribution; according to Scott and Wolfenden the spec- 



