CYCLOPOIDEA. 



1229 



Plate 86, fig. 10 a, lateral view of animal, enlarged; a', back view, 

 conspicilla omitted ; b, posterior antennse ; c, anterior feet. 



Atlantic, latitude 0° 30'-l° north, longitude 18° west, November 

 3, 1838, 4 a. m. 



Length, one-thirtieth of an inch. Nearly colourless ; extremity of 

 abdomen and of the anterior antennae, vermilion, passing backward 

 into orange and yellow. 



The cephalothorax in a vertical view is ovate or suboval, being 

 slightly larger anteriorly and truncate behind. The abdomen has the 

 apical joint and the basal each not one-fourth the second. The ante- 

 rior antennae have five joints, the two basal quite short, the three ter- 

 minal subequal, and the last obsoletely triarticulate ; setae at apex 

 about half the length of the antenna. 



Antaria gracilis. 



Pedes antici rnediocres, antennis posticis paululo majores. Abdomen 

 8ensim attenuatum. Styli caudales abdomine quadruple* breviores, 

 setis dimidio abdominis longioribus. 



Anterior feet rather small, very slightly larger than the posterior 

 antennae, claw small. Abdomen gradually tapering. Caudal stylets 

 one-fourth as long as the abdomen, setae longer than half the abdo- 

 men. 



Plate 86, fig. 11a, lateral view of animal, enlarged ; b, back view 

 of the first, with the external ovarian sacs; c, anterior antennae; d, 

 posterior antennae ; fig. 12, another variety. 



Atlantic, latitude 5°-7° north, longitude 21°-22° west, October 18, 

 20, 22, 23, 1838, and latitude 2° 20' south, longitude 20° west, 

 November 6, 1838. 



Length, one-twentieth of an inch. Colourless; also, often bluish, 

 and reddish. 



Cephalothorax in a vertical view is oval. The second abdominal 



308 



