140 



The female presents the following differences. There is no genicula- 

 tion, nor pectinations, on the right anterior antenna ; the acute j^osterior 

 angles of the cephalothorax are produced equally, and bent slightly out- 

 ward, the right not black at the tip. The abdomenis four-jointed; the 

 second joint is the largest, rounded laterally and gibbous below, and the 

 posterior lateral angle on each side is produced into short acute pro- 

 cesses ; in the center of the protuberance below is a deep black spot. 



It will be observed that some of the characters mentioned above be- 

 long to Candace curta. The females show a decided likeness to the 

 same sex of G. pacJiydactyla. The only difference of any importance 

 that I can see in the three species, is in the structure of the right pos- 

 terior foot of the male. Future research will probably determine them 

 to be but a single species with individual variations. The structure of 

 the right anterior antenna of the male is a strong specific character. 



PONTELLINA DETRUNCATA, Dana. 



Pontellina detruncata, Dana, U. S. Expl. Exped. Crust., ii, 1143, pi. 80, f. 7. 



Locality: South Pacific Ocean. Latitude 10° south; longitude 110° 

 west. Collected May 1, 1873. 



PONTELLA FERA, Dana. 



Pontellafera, Dana, U. S. Expl. Exped, Crust., ii, 1169, pi. 82, f. 5. 



Locality : South Pacific Ocean. Latitude 23° south ; longitude 94:° 

 west. Collected April 24, 1873. Specimen male. 



COEYC^ID^. 

 CORYCiEIN^. 



ANTAEIA OBTUSA, Dana. 



Antaria oUusa, Dana, U. S. Expl. Exped. Crust., ii, 1230, pi. 86, f. 13. 



Locality: North Pacific Ocean. Latitude 5° north; longitude 128° 

 west. Collected May 10, 1873. 



The claw of the anterior feet is not as long as the preceding joint; 

 the caudal stylets are about one-third the length of the abdomen, and 

 the two external setae, instead of being but little more than the diameter 

 of the stylets in length, equal one-half, or more than one-half, their 

 length. 



