oå 
the eggs and the young being carried towards the surface”); and 
we must think that, when shoals of the species are carried towards 
the coasts, the specimens perish if they don't find sufficiently deep 
and salt water, while the specimens which happen to be carried 
into the deep fjords, where sufficiently salt water layers are pre- 
sent, may dwell there for some time. Probably, however, the unfavor- 
able conditions, particularly the impossibility of reaching sufficiently 
deep water, restrain the development of the sexual organs, so that 
the individuals die without reaching maturity, or possibly the ma- 
turity: is reached later in the year. 
Eukrohnia fowleri Ritter-Zåhony. 
Eukrohnia hamata var. Fowler 1905, p. 77. 
— fowleri Ritter-Zåhony 1909, p. 793. 
— — — 1911, p. 40. 
A well-marked deep-water species with a wide distribution. It 
occurs in the mesoplankton in the North Atlantic to the Wyville 
Thomson ridge. It has not hitherto been known from the Davis 
Strait. It resembles Eukrohnia hamata, but living specimens are 
conspicuous at once owing to the red colour. In badly preserved 
material the black pigment in the eyes is a secure character for 
identification. 
The species seems not or to a very slight degree to be prot- 
andric. In two of the specimens brought home all the eggs are 
mature, while the sperm is not completely evacuated. In a spec- 
imen, 30 mm long, from stat. 333 most of the eggs are placed 
freely in the coelom, partly far forward in the body. It is hardly 
probable that this is a normal case; it seems more likely to be 
due to a bursting of the ovaries owing to the preservation or to 
the transport from 1000 meters depth to the surface. It must be 
pointed out, however, that these eggs are quite spherical, while the 
ripe eggs included in the oviducts have a polygonal shape owing to 
the mutual compression. In another individual, 35 mm long, from 
) The rising of such tiny organisms from the deep-water towards the sur- 
face must be due to certain vertical movements of the water particles, 
not yet sufficiently studied by the hydrographers. 
