DACTYLOPUS. 119 
in length from without inwards; the inner branch is 
stout, with two stout, curved, terminal claws, and one 
long, plumose, marginal seta. The fifth foot (Pl. _ 
LYVII, fig. 12) has a stout and broad basal joint, the 
inner segment of which bears five setz of unequal 
leneth; the second joint is of moderate size and has 
about six unequal setee and a few small marginal hairs. 
Length ;';nd of an inch (1'1 mm.). 
Mr. Norman has taken this species at Oban, and on 
the fronds of Laminarie at Tobermory, and I have 
myself found it not uncommonly on Laminaria sac- 
charina at Sunderland; Mr. Robertson has dredged it 
in a depth of two to three fathoms off Douglas, Isle of 
Man, and it occurred also in dredged material got by 
Mr. Robertson and myself amongst the Scilly Islands, 
in depths of twenty to forty fathoms. 
The extremely short, somewhat conical, and densely 
setose antenne distinguish this species at a glance 
from any other with which I am acquainted. 
7. Dactynorus minutus. Plate LXVII, figs. 12—14. 
Dactylopus minutus, Claus. Die frei lebenden Copepoden, p. 126, 
taf. xvi, figs. 14, 15 (1863). 
Body very slender ; rostrum long. Anterior antenna 
(fig. 12) elongated, slender, 9-jomted; second and 
fourth joints much the longest; last five joints (fla- 
gellum) more slender than the rest and subequal. 
Outer branch of the first foot (fig. 13) slender, about 
two thirds as long as the first joint of the inner branch ; 
