20 8 COPEPODA 



fairly distinct pointed outer spine; the outer-edge lamina of the third pair of legs has no spines. 

 Along the inner margin of the second basipodite only two setae are observed ; the inner terminal tooth 

 of the third basipodite is longer and more slender. The fifth pair of legs is fairly well developed, with 

 three indistinct segments (fig. nb); on the left side two indistinct terminal setae are found; on the 

 right side the endopodite is indicated by a small process, and the exopodite has, inwards, a distinct 

 spine. A similar asymmetric structure was also observed in a specimen from Ing. St. 19. In a spec- 

 imen from Ing. St. 9, the left leg had a somewhat better developed endopodite, and the exopodite had 

 a terminal and an inner seta, fairly long and placed nearer the tip than the base. In the specimen 

 from 0. Exp. 1900, the legs were symmetrical, and showed, as seen in PI. VIII fig. n c, a somewhat 

 different structure. 



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



V 7 1895 St. 27 6454 L. N. 55io L. W. V 1 . 2000 fathoms Temp, at the surface 3-9 C. 2 f ?. 

 l8 /6 1895 St 19 6o29 L. N. 34i4 L. W. V 1 . 300-0 6 C. if?. 



*/ 5 1895 St. 9 64i8 L. N. 27io L. W. V. 100-0 7 C. 2 f ?. 



The Danish East-Greenland Expedition has 2 5/ 9 2 p. m. 1900 6oi9 L. N. 22io L. W. F. 399 

 gathered a single adult female. 



As far as I was able to ascertain, this species has not been described hitherto. It is very much 

 related to 5 1 . minor, and it is not without doubt that I have established it as a new species, as, at 

 almost all the localites it was found in company with that species; but as the character found in the 

 much longer fifth foot was found to be fairly constant in spite of small variations, I thought it 

 right to do so. 



67. Scolecithricella ovata Farran. 

 (PI. VII figs i4ad; PI. VIII figs 12 a f). 



1905. Scolecithrix ovata n. sp. Farran, p. 37, pi. VI figs 13 18, 1908. Scolecithrix ovata Farr. Farran, p. 51. 



pi. VIII figs I 5. 1908. v. Bremen, p. 72, fig. 83. 



1906. Scolecithricella ovata Farr. Pearson, p. 18. 



Description. Size of specimen from Ing. St. 19 was 2-32 mm.; anterior division 1-84111111.; uro- 

 some 0-48. Another specimen measured 2-5 mm. Farran's specimens measured 2-3111111. 



The shape of the body is in main features like Farran's description; the head is fairly well 

 raised, and the rounded lateral-corners are slightly produced. The first and the fifth thoracic somites 

 are not marked out in front. The rostrum consists of two short, obtuse, slightly divergent teeth, arising 

 from a short lamelliform undivided process, to which are attached fairly slender and apparently obtuse 

 rostral filaments, several times longer than the rostrum proper and, in direction downwards and back- 

 wards, reaching beyond the insertion of the antennulae; these filaments are wanting in most specimens. 



The abdomen has the genital somite only slightly produced below; the receptaculum seminis 

 is elongated-pear-shaped, and generally very prominent. The comparative length between the abdominal 

 somites and the furcal rami, which are almost twice as long as wide is 22, 12, 14, 3 and 12. 



The antennulae have 23 segments of which the segments 24 and 25 are completely fused; they reach 



