148 



MR. I. C. THOMPSON ON THE COPEPOUA OF 



Calanus payo, 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 partus, Claus. 



One or two specimens only of this rare form were taken at 

 Orotava, Teneriffe. 



EucALANUS ATTEUfUATUS, Dana, 



E. SETIGER, Brady. 



Brady remarks upon the " mimetic resemblance" of this spe- 

 cies to Calanus finmarchicus. Our 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. gioas, Brady. 



PSEUDOCALANUS ELONGATUS, Boeck. 

 PlEUROMMA ABDOMIIfALE, ClaUS. 



Leuckartia elavicornis, Claus. 

 ScoLECiTHRix Danjs, Lubhock. 

 S. MINOR, Brady. 



Euchjeta prestandre^, Philippi. 

 Candace truncata, Dana. 



C. NIGROCINCTA, U. sp. (PL X. figS. 1-6.) 



Length inch. Head-somite distinct from thorax. Body oval, 

 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 

 pigmented with a blackish-brown colour, the same pigment tinging 

 the setse 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- 



