118 BRITISH COPEPODA. 
This very well-marked species has occurred amongst 
dredged material from several places, but except at 
Red Cliff, where several examples were found, it seemed 
to be extremely scarce. The following are the locali- 
ties:—In twenty-seven fathoms off Hawthorn, Durham; 
thirty to thirty-five fathoms off Staiths, Red Chiff, and 
Robin Hood’s Bay, Yorkshire; Clew Bay, Ireland; 
off Callum’s Hole, Bute, sixteen fathoms; Oban, 
twelve to sixteen fathoms (Rev. A. M. Norman). 
6. Dacrytopus Brevicornis, Claus. Pl. LVI, figs. 10 
—12; Pl. LVIITI, fig. 14. 
Dactylopus brevicornis, Claus. Die-Copepoden-Fauna von Nizza, 
p. 29, taf. iu, figs. 20—25 (1866). 
Body elongated ; abdomen short and broad ; rostrum 
of moderate length. Anterior antennz (fig. 10). ex- 
cessively short and stout, thickly clothed with hairs, 
five-jointed ; fourth joint short, fifth more than twice 
as long and more slender. Inner branch of posterior 
antenna 38-jointed. Mouth organs very similar to 
those of D. tisboides. Lower foot-jaw short and stout 
(fig. 11), the hand somewhat oblong-quadrangular and 
bearing a stout, curved, terminal claw. Both branches 
of the first pair of feet short and (Pl. LVIII, fig. 14) 
nearly equal in length; first and second joints of the 
outer branch equal, twice as long as the third, which 
is extremely short, truncate at the extremity, and 
bearing five strong curved sete, increasing gradually 
