1903. ] PLANKTON OF THE FAEROE CHANNEL, 121 
were captured by the ‘Research’ in the Faeroe Channel; they 
are cited in the text by Roman numerals, 
Concuacra MAximA Brady & Norman, 
As I have previously pointed out’, this species appears to be 
purely mesoplanktonic, in the latitude at any rate of the Faeroe 
Channel. It occurred in 50 per cent. of the mesoplankton hauls, 
and in three hauls which began at or over 300 fathoms and finished 
at the surface ; it was not captured once in hauls between 100 
fathoms and the surface (cf. table, p. 118). The species was 
fairly common. 
The record of previous captures was cited in the second paper of 
this series }, and also indicated a mesoplanktonic habit in subarctic 
regions, but it is not surprising that in yet colder waters it should 
appear at the surface. At 84° 32’ N., 76° E., it was captured 
with a surface-net by the ‘ Fram’ *,and is recorded as abundant in 
most of the samples of Crustacea from this voyage *. 
ConcHa@CIA HYALOPHYLLUM Claus. 
Twelve specimens in haul 137, 100 fathoms to surface. Five 
specimens too small for satisfactory identification, but perhaps 
referable to this species, occurred in hauls 20¢ and 20 d. 
Claus * records as other occurrences Chun’s haul LV., Ischia at 
492 fathoms, Orotava at the surface. 
2 ConcHacIA PORRECTA Claus. 
Numerous specimens from 20a 6¢d and one from 137%. Claus 
(op. cit.) records it from Chun’s hauls IL, I1., PV., VII. 
CoNCH@CIA BOREALIS G, O. Sars. 
A single specimen in haul 19 a, 480 to 350 fathoms. Recorded 
previously from 250 to 300 fathoms at the Lofoten Islands’, and 
from Trondhjem Fjord at 150 fathoms®, This appears to be a 
purely cold-water form. 
PARACONCH@CIA OBLONGA Claus, 
Six specimens in haul 20¢, four in 20d. Claus (op. cit. p. 64) 
cites this species as from Chun’s hauls III. and IV.; and states 
that it also occurs at the surface, but without giving authority or 
details. He remarks on the probable identity of this species with 
G. W. Miiller’s variabilis’, a suggestion with which Miiller seems 
to agree®. This would extend the distribution considerably, as 
Miiller? records it, from the ‘Vettor Pisani’ collections of 
1 Proc. Zool. Soc. 1897, p. 523. 
2 ¥. Nansen: Norwegian North Polar Expedition. G. O, Sars: Crustacea, p. 11. 
3 Td. ibid. p. 137. 
4 C. Claus, op. cit. p. 61. 
5 G.O. Sars: Forh. Vid.-Selsk. Christiania (1865), vol. 1866, p. 120. 
G.S. Brady & A. M. Norman: Trans. Roy. Dublin Soe. (2) v. p. 686. 
G. W. Miller: “ Ueber Halocypriden,” Zool. Jalirb. Syst. v. p. 273. 
G. W. Miller: ‘ Ostracoden des Golfes von Neapel,’ p. 229. 
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