CYCLOPOIDEA. mi 



The maxillipeds are three-jointed, and they are flexed forward be- 

 tween the first and second joints. The second joint is stout and ob- 

 long. The third is very short. On the inner side of the third and 

 second there are a few long naked setae (as long as the first joint), 

 forming together a pencil ; and besides, there are on the second joint 

 one or two shorter setae, a little remote, and one or two still shorter 

 on the inner side of the first joint. 



The first pair of feet is small, and as far as examined, straight. 

 They consist of three or four joints with very short setae on the inner 

 side at apex. 



The first four pairs of natatories are similar to those of other Cala- 

 nidae. 



The fifth pair, or posterior pair of feet, is quite small in females. 

 But in males it is large, and of various forms, adapted more or less 

 perfectly for prehension. The cheliform character is not as distinct 

 as in most Pontellae. There is usually a curved spine, corneous seta, or 

 stout appendage, proceeding from one side of the main part of the 

 right leg, and as far as observed from the penult joint. 



The abdomen has from two to six segments. The first segment (or 

 second, if there are six), has often a spinous process on the right side, 

 projecting outward; but this is not constant for a species. In one in- 

 dividual there was a slender process projecting backward from either 

 side. In some cases this segment or the second is strongly gibbous 

 below. 



The caudal stylets are quite short, and have the outer margin 

 arcuate. The setae form a close pencil, about as long as the abdomen ; 

 they are ten in number, and of nearly equal length. 



The species of Candace occur within the tropics, and over the 

 different oceans traversed by the Expedition ; yet they are not nume- 

 rous. 



Candace, Dana, Amer. Jour. Sci. [2], i. 228 ; also, Proo. Amer. Acad , ii. 22, 

 1849, where the following new species are briefly described by the author. 



Candace ornata. 



M ar i s : — Ceplialothorax b-articidatus, segmentis posticis quatuor, angulis 

 posticis longe" acutis, dextro longiore. Antennce e basi arcuatce, alio- 

 que recti transversa, corpore parce breviores, articulo secundo paulum 

 oblongo; eetis brevibus, quorum panels secundo articulo parch longio- 



