152 



MR. I. C. THOMPSON ON THE COPEPODA OF 



Delayalia kobusta, Brady ^ Eohertson. 



DiosACCTis TENricoENis, Claus. 

 One specimen only found at Orotava, Teneriffe. 



Laophonte curticaudata, Boech. 



L. SERRATA, Claus. 



Dactylopus tisboides, Claus. 



Thalestris Mrsis, ah p j n 



' Ail louiid generally 



T. RTJFOCINCTA, iV^orma^. y distributed, but none 



Westwoodia nobilis, Baird. plentiful. 

 Harpacticus chelifer, Muller. 



PORCELLIDIUM TIRIDE, FMUppi. 



Ibta furcata, Baird. 



Machairoptjs, n. gen. 



Head longitudinally rounded, terminating in long thin bifid 

 rostrum. Anterior antennae 12-jointed, about two thirds the 

 length of cephalothorax ; sparingly setiferous. Posterior an- 

 tennae long ; the outer branch 3-jointed, the inner 2-jointed. 

 Mandibles have very fine claw-like teeth ; the palpi is two- 

 branched, with long fine hairs. 



Maxillae have four strong serrated curved spines and numerous 

 setae. Posterior foot-jaw 2-jointed, having long sword-like spines 

 with enlarged bases. Anterior foot-jaw small. Abdomen 2- 

 jointed. 



MaCHAIROPUS SANCTiE-CRrCIS, n. sp. (PI. XII. figs. 1-5.) 



Length -^-^ inch. Eounded head (fig. 1) of a deep pink colour. 

 Anterior antennae (tig. 2) 12-jointed. Posterior antennae (fig. 3) 

 has long whip-like setae, extending to the length of the anterior 

 antennae. 8wimming-feet (fig. 4) have three joints to outer 

 branch, and two joints to inner. Terminal spine narrow and 

 finely serrated. Basal joints of swimming-feet have long spine 

 on inner margin. Fifth feet (fig. 5) have one joint terminated by 

 a long, stout, curved spine, with a small one at each side. Pirst 

 joint of abdomen is small, the second long, and wide in the 

 middle. Caudal segments are about four times as long as broad, 

 and are terminated by short non-plumose setae. 



