36 LIVERPOOL BIOLOGICAL SOCIETY. 
in the two sexes, being very distinctive. Most of the 
females had mostly spermatophores attached to the vulvar 
region of the abdomen; in some cases as Many as Six were 
attached to one animal, resembling somewhat a bunch of 
tallow candles; some had ovisacs in addition. 
A marked feature about the females of Hurytemora, in — 
common with those of some other genera of Copepoda, is 
the presence of a leaf-like projection on either side of the 
animal at the termination of the cephalothorax (fig. 1). 
These appendages appear to act as protective coverings 
for the ova and spermatophores, which might, and probably 
would, be dangerously exposed as the animal rapidly 
swims through the water. They appear to serve the same ~ 
function as the strong cephalothoracic spines, so con- 
spicuous In Centropages and other Copepoda. In most — 
other respects the Hurytemora hkirundo has the charac- 
teristics of the genus Temora, as clearly figured and 
described by Brady in the species longicornis. 
Another interesting addition to the British fauna is ~ 
Dias discaudatus, several of which were taken off the 
Anglesey coast, during the cruise of the ‘‘ Hyena,” in May, 
1886. Like the last, this species was first described and 
named by Giesbrecht, being found in one locality of the 
Baltic. In general appearance it much resembles Dias 
longiremis, a very common British species, and from this 
cause it seems to me exceedingly probable that its separate 
identity may thus have been overlooked, and that it may 
be much more widespread than is supposed. As Dias 
longiremis is well figured by Brady and others, I need 
only refer to these authors for the several characters of 
the genus, and direct attention to the special structural 
differences of D. discaudatus. First of these is the elegantly 
plumose character of the anterior antenne (PI. V., fig. 1) 
and caudal sete (figs. 2and 3). Another noticeable feature 
