128 DR. G, HERBERT FOWLER ON THE [ Feb. 3, 
recorded from the Antarctic region, as well as from the Gulf- 
Stream proper, the Sargasso Sea, and South Equatorial Drift’. 
EUTHEMISTO LIBELLULA Mandt. 
A single specimen in haul 15d at the surface at midnight. It 
is widely distributed over the Arctic Seas, but, unlike the two 
foregoing species, was not taken in southern waters by the 
‘ National.’ 
SCINA BOREALIS G. O. Sars. 
A single specimen from 13g (465 to 335 fathoms) was acci- 
dentally included among the Copepoda sent to Mr. Thompson 
and identified by Mr. A. O.Walker. According to Canon Norman ’, 
the distribution of this species is mesoplanktonic, mostly northern, 
but also in the Bay of Biscay (960 metres). It reaches to about 
SOUUINE 
SCHIZOPODA. 
The Schizopoda captured belong exclusively to the Huphausiacea, 
and are referable to only three species. Several forms which 
might have been reasonably expected among the captures were 
absent. <A list of the British species with their distribution is 
given by Canon Norman, in his paper on British Lophogastridee 
and Euphausiidee *. : 
TTHYSANOESSA LONGICAUDATA Kroyer. 
A considerable number of specimens of this species were 
captured: it appeared to be the commonest Schizopod of the 
Faeroe Channel at the time. The synonymy appears to be 
Thysanopoda longicaudata Kroyer=Thysanoessa tenera Sars= 
Thysanoessa longicaudata of Hansen, Norman, Ortmann, We. 
The species ranges from the West Coast of Norway right across 
to Greenland and into the Labrador current; the ‘ National’ ’ ceased 
to take it (after almost daily captures up to that moment) from 
the date of entering the warm water of the Gulf-Stream (‘ Florida- 
strom’). Sars*, who described the species from deep water in 
the Varanger Fjord, records it also as from the surface at four 
stations between Norway and Jan Mayen on the cruise of the 
‘Vormgen’". It appears, therefore, to be essentially a cold- 
water species, an Arctic type-form, and was captured by the 
Siirenotdes | 
It has, however, been recorded twice from British coasts *. 
Vosseler: Amphipoden der Plankton-Expedition, p. 86. 
A. M. Norman: Ann. Mag. N. H. (7) v. p. 185. 
F.. Nansen, op. cié. p. 19. 
4 A.M. Norman: Ann. Mag. Nat. Hist. (6) ix. p. 454. 
5 A. Ortmann: ‘ Decapoden und Schizopoden der Plankton-Expedition,’ p. 14. 
6 G.O. Sars: Forhandlinger Videnskabs-Selskabet (Christiania), 1882, no. 18, p. 58. 
7 G.O.Sars: Norwegian North Atlantic Expedition (Crustacea), pt. 1. p. 18. 
8 F. Nansen: Norwegian North Polar Expedition. G. O. Sars: Crustacea, p. 14. 
9 A. M. Norman: Aun. Mag. Nat. Hist. (6) ix. p. 463 ; and the papers there cited. 
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