CYCLOPOIDEA. J261 



Body ten-jointed, anterior segment much the stoutest, the others gra- 

 dually diminishing. Conspicilla situated on the front, very large 

 and prominent, in contact. Anterior antennae of moderate size, 

 seven-jointed, third, fifth, and seventh joints short. Caudal stylets 

 oblong, setae full twice longer than stylet. 



Plate 88, fig. 11, female, enlarged. 



Atlantic, latitude 7°-4° north, longitude 21° 30'-20° west, October 

 18 to 25, 1838 ; also, 4° 30' south, longitude 25° west, May 13, 1842. 



Length, one-sixteenth of an inch. Colour, deep blue, with some 

 •yellow along the ventral portion, and the intestine often deep red. 

 The conspicilla stand out nearly like transparent glassy hemispheres 

 on the front. The antennae are stouter than in the following species; 

 the fifth joint a little arcuate; the fourth joint the longest. Eggs 

 of the ovarian sac were generally rich ultramarine blue ; in one speci- 

 men, bright red. Caudal stylets about as long as two preceding segments 

 of abdomen, and the setae about two-thirds the length of the abdomen. 



MlRACIA GRACILIS. 



Corpus gracile, sensim posticd attenuatum, 10-articulatum, segmento 

 antico nan latiore. Conspicilla maxima, paulo prominentia, f route 

 insita. Antennae anticae tenuissimce, articulis secundo quarto duobus- 

 que ultimis brevibus. Styli caudales oblongi, setis quadruplo longio- 

 ribus, fere corporis longitudine. 



Body slender, gradually diminishing, ten-jointed, the first segment 

 not stouter than the following. Conspicilla situated on the front, 

 very large, but little prominent. Anterior antennae very slender, 

 second, fourth and last two joints short. Caudal stylets oblong, 

 setae four times as long as stylets, or nearly as long as the body. 



Plate 88, fig. 12a, animal, enlarged; b, appendage to beak; c ? 

 another variety. 



South Pacific, latitude 32° 24' south, longitude 177° east, northeast 



316 



