192 COPEPODA 



North-east of Iceland: 



22 / 7 1904 St. 214 67i9 L. N. i755 L.W. Yt 800 M.Wire 19 f?, i f<7, i yc? (V). 

 Outside the Ingolf area the species was captured: 



'5/ 6 1905 St. 82 5ioo L. N. n43 L.W. Yt. 800 M.Wire i f?, i yc? (V|. 



Yt. 1200 M.Wire 4f?, 4yd* (V). 



% 1905 St. 72 5747 L. N. n33 L.W. Yt. 1500 M.Wire 35 f?, i fd<, 2 y?, 10 y& 

 2 % 1905 St. 88 4809 L. N. 830 L.W. Yt 300 M.Wire i f?. 



Distribution. This species seems to have a world-wide distribution; it has been found, though 

 rather scarce, generally in considerable depths in the Antarctic seas (65 S. 85 E.), in the Atlantic, south 

 as well as north, even at the Equator (c. 30 L. W.), in the Arctic seas, in the Malay Archipelago, in the 

 Gulf of California between 50 and 300 fathoms (Esterly 1912, p. 321) and in the Pacific (35 L. N. 125 

 L.W. o 300 m.). According to Farran (p. 52) it is "a very common and noticeable species in deep 

 water" off the west coast of Ireland, "it occurred on every station and in almost every tow-netting be- 

 tween 280 and 1150 fathoms". The species was sometimes found in the Norwegian Sea between 200 

 and 1000 metres as well as in the deep Norwegian fjords. By the Due d'Or leans it was taken at eleven 

 stations (in about 15 samples) in the ocean east of Greenland between about 200 and 1800 metres; it 

 is rather curious that it was never found farther east than 9oo L. W. at 7555 L. N. ; it was found 

 near the coast of Greenland and as far north as 78i3 L. N. It was found as far south as 7i22 L. N. 

 (i858 L. W.); only in a single sample St 43 J / 8 1905 78i3 L. N. i63i between 310475 meters was it 

 found fairly common, males as well as females. By the Nans en's Expedition it was found fairly, 

 abundant, sometimes up to the very surface of the sea as far north as 84 L. N. between 134 and 76 

 Long. E. These different facts indicate, as pointed out by Sars, that this form has its main area of 

 distribution in the Polar basin, though it is found in small numbers in the deeper layers of the dif- 

 ferent seas. 



Remarks. As the variations in the lateral corners, as well as in the fifth pair of legs in the 

 females, are rather common, I did not find any reason to establish a new species for the three men- 

 tioned specimens with a well developed endopodite. The features which distinguish my specimens 

 from Giesbrecht's Sc. cristata are enumerated above, and are too unimportant for establishing two 

 species. Wolf en den's specimens from the Atlantic measured 37, and those from the Antarctic seas 

 4-25 mm., but he could not find any other characters, except in the comparative length of the spines 

 of the fifth pair of legs, which, as shown above, are very variable. 



60. Scaphocalanus brevicornis G. O. Sars. 

 (PI. VII figs 7 a b; textfigs 593 b). 



1900. Scolecitkrix brevicornis n. sp. G. O. Sars, pp. 46 47, pi. X. 

 1902? G. O. Sars. Th. Scott, p. 452, pi. 



XXV figs 1-2. 

 1903. Amallophora brevicornis G. O. Sars. G O. Sars, pp. 53 54, 



pi. XXXVI. 

 1904? Wolfenden, p. 137. 



1907. Amallophora brevicornis G. O. Sars. Dainas & Koefoed, 



p. 410. 



1908. Scolecithrix gracilipes n. sp. Farran, pp. 52 53, pi. VI 



figs 14. 



1908. brevicornis G. O. Sars. v. Bremen, p. 78, fig. 90. 



1913. Amallophora brevicornis G. O. Sars. Stephensen, p. 314. 



