CYCLOPOIDEA. 1211 



appendages, besides a fourth very short near the articulation of the 

 thorax with the abdomen, 7 a'. 



Anterior pair three-jointed and as long as half the cephalothorax ; 

 the second joint shortest, a few short spines at apex. 



Next two pairs two-branched. Branches short, two-jointed, and 

 having setae at apex. 



Colourless. Length, one-sixtieth of an inch. Movement very irre- 

 gular and wriggling ; not in regular leaps. 



CORYOEUS VARIUS. 



Cephalothorax crassus. Gonspicilla remotiuscula. Antennae anticce 

 elongate setulosce. Antennarum posticarum articulus 2dus digito brevior, 

 seta longd, midd. Abdomen 2-articulatum, segmento secundo cylin- 

 drico, breviore quam primum. Styli caudales abdomine vix bre- 

 viores, setis dimidio brevioribus. 



Cephalothorax stout. Conspicilla rather remote, large. Anterior 

 antennae with long setae. Finger of the posterior antennae longer 

 than the second joint, seta of the second joint long, naked. Abdo- 

 men two-jointed, first joint elliptical, with a short cylindrical apex, 

 second cylindrical, shorter than the first. Caudal stylets hardly 

 shorter than the abdomen, setae half shorter. 



Plate 85, fig. 4 a, animal, enlarged ; b, same, dorsal view ; c, side 

 view of abdomen; d, anterior antenna; e, posterior antenna; /, nata- 

 tory leg of first pair; g, ibid, of fourth pair; A, eggs, pressed from the 

 body. 



Atlantic, latitude 7° 25' north, longitude 22° west, October 17, 1838 ; 

 latitude l°-7° south, longitude 18°-21° west, November 5, 1838; lati- 

 tude 7° south, longitude 20° west, May 11, 1842 ; latitude 1° south, longi- 

 tude 30° west, May 16, 1842. Pacific, latitude 15° 30' south, longi- 

 tude 138° 30' west, August 19, 1839 ; latitude 33° south, longitude 

 153° 30' east, November 29, 1839; near the Ladrones, December 31, 

 1841. 



Length, one-twentieth of an inch. Colour of one specimen, blue; 

 another colourless, except a tinge of blue along the venter, and a clear 

 red in the terminal joint of the abdomen. 



