148 
MR. I. C. THOMPSON ON TIIE COPEPODA OP 
Calanus pavo, Dana. 
This species occurs in considerable numbers in the gatherings 
from Madeira and Teneriffe ; but the elegant peacock-tail plumes 
figured by Dana (Crustacea of U. S. Exploring Expedition) have 
become detached in all the specimens. 
Paracalanus paryus, Claus. 
One or two specimens only of this rare form were taken at 
Orotava, Teneriffe. 
Eucalanus attenuates, Dana. 
E. setiger, Brady. 
Brady remarks upon the “ mimetic resemblance ,J of this spe- 
cies to Calanus finmarcliicus. Oar specimens do not bear out 
this remark ; and the absence of terminal spines to the swimming- 
feet of this species is a distinguishing feature. 
Rhincalanus cornutus, Dana. 
R. gigas, Brady. 
PSEUDOCALANUS ELONGATUS, Boeclc. 
Pleuromma abdominale, Claus. 
Leuckartia flayicornis, Claus. 
ScOLECITHRIX DAN^, Lubbock. 
S. MINOR, Brady. 
EuCHiETA PRESTANDREiE, Philippi. 
Candace truncata, Dana. 
C. NIGROCINCTA, n. sp. (PI. X. figs. 1-6.) 
Length ^ inch. Head-somite distinct from thorax. Body oral, 
rounded in front ; posterior segment terminated by two lateral 
spines. Anterior antennae 23-jointed, bearing several spinous 
processes on inner margin, and short setae at the termination of 
each joint. The 8th, 9th, 10th, and 11th joints (fig. 1) are deeply 
pi gmented w r ith a blackish-brown colour, the same pigmenttinging 
the setae of the posterior antennae and the terminal spines of the 
swimming-feet. Posterior antennae (fig. 2) similar to that of 
C. truncata , but with fewer terminal setae. Anterior foot-jaws 
(fig. 3) 2 -jointed, large and powerful, with two small claw-like 
spines on basal joint, and five large ones on second joint. Pos- 
terior foot-jaws small, 7-jointed. First four pairs of swimming- 
