— 
of the Fishery Board for Scotland. 465 
Cletodes longicaudata, Brady and Robertson. Pl. XXTIIL, figs. 26-33. 
1875. Cletodes longicaudata, Brady and Robertson, Brit. Assoc. 
Rept., p. 196. 
1880. Cletodes longicaudata, Brady, Mon. Brit. Copep., vol. iii., 
p. 92, pl. Ixxix., figs. 13-19. 
A perfect specimen—a female with ova—was obtained in a gathering 
from the west end of Station III., Firth of Forth, coilected on June 7th, 
1901. As the species is somewhat rare I give a short description of it, 
along with figures of some of the principal appendages. ‘The female 
specimen referred to measured about ‘84 mm. (5 of an inch) in length 
from the forehead to the end of the caudal furca, but the caudal furca, 
which are very long, are about equal to a fourth ‘of the entire length of 
the animal ; the rostrum is of moderate length (fig. 26). 
The antennules are short, moderately stout, and composed of five 
joints. Professor G. S. Brady describes the antennules of his specimen as 
six-jointed, but this difference may be due to a slight local variation. 
The fourth joint is very small and carries an asthetask or sensory 
filament (fig. 27). The formula shows approximately the. proportional 
lengths of all the joints :— 
Proportional lengths of the joints, ee OF lS See aes 
Numbers of the joints, Puce is One eee de 5 
The antenne (fig. 28) are of moderate size, but the secondary branches 
are small and one-jointed. 
In the first four pairs of thoracic feet, the outer branches, which are all 
three-jointed, are all of them somewhat similar in structure ; the first joint 
is slightly longer than the second, while the end joint is distinctly longer than 
either of the other two; the marginal armature consists also of setee rather 
than spines. The inner branches of all the four pairs are slender and 
two-jointed, the first joints being very short. In the first pair the end 
joints of the inner branches extend somewhat beyond the outer branches 
and are furnished with two long terminal setz (fig. 29). In the second 
pair the end joints of the inner branches are, like those of the first pair, 
long and slender, but they do not reach to the extremity of the outer 
branches; they bear two long terminal sete (fig. 30). In the third and 
fourth pairs, the inner branches are considerably shorter than the outer 
and bear one sub-terminal and two apical sete (fig. 31). 
The fifth pair are moderately large; the secondary branches are 
elongated, - narrow-cylindrical, and about four times longer than broad ; 
they are armed with two terminal and three strong marginal sete, as 
shown in the figure; the inner produced portion of the basal joint is 
nearly as long as the secondary joint, and provided with three moderately 
elongated sete near the distal end ; a long slender seta also springs from 
the outer aspect of the basal as shown (fig. 32). 
Cletodes longicaudata does not appear to be a very common species 
anywhere, although it seems to be widely distributed. 
Fultonia, 'T. Scott (gen. nov.). 
This genus is somewhat like Cletodes, G. S. Brady, in general 
appearance. The abdomen in not distinctiy separated from the thorax. 
The antennules are moderately short and composed of about eight joints. 
The antenne are each furnished with a small secondary branch. The 
mouth organs are similar to the same appendages in Cletodes. The 
outer branches of the first four pairs of thoracic feet are all three-jointed, 
while the inner branches of the first pair are composed of two, and of the 
second, third, and fourth pairs of three joints. The fifth pair are nearly 
2 F 
