CYCLOPOIDEA. 1223 



Conspicilla a little separate, large. Anterior antennaB very slender, 

 setae long. Finger of the posterior antennas rather short and nearly 

 equally two-jointed, second joint of antenna having a tooth at the 

 inner apex, seta of this joint long, naked. Abdomen two-jointed, 

 first segment broad, narrow at base, second smaller and shorter. 

 Caudal stylets divaricate, a little shorter than the abdomen, setae 

 as long as the abdomen. 



Plate 86, fig. 4 a, animal, enlarged, lateral view; a', same, dorsal 

 view; b, posterior antenna; c, mandible or inner maxilla; d, first pair 

 of feet. 



Pacific, Kingsmill Islands, twenty miles north of Charlotte Island, 

 4 A. m., April 22, 1841. 



Length, one-sixteenth of an inch. Nearly colourless. 



The posterior cephalothoracic segment has the angles very slightly 

 prolonged and acute. The caudal stylets are two-thirds as long as 

 the abdomen. The ventral angle of the cephalothorax is not very 

 prominent. The anterior antennae have some of the setae longer than 

 the organ. 



The posterior antennae have a stout two-jointed finger; the joints 

 are nearly equal, and the first of the two is furnished with two or 

 three short spines. The naked seta from the base of the second joint 

 of the antenna was straight in the specimen examined, and longer 

 than the joint. 



Corycceus inquietus.— Bute 86, fig. 5 a, h, represents imperfectly a 

 specimen taken in the Sooloo Sea. It was lost before the drawing 

 was finished, having leaped from the glass containing it, the glass at 

 the time being nearly dry. It has the posterior angles of the cepha- 

 lothorax acute; also, the posterior angles of the fourth cephalothoracic 

 segment acute; the conspicilla large and in contact; the posterior 

 antennae with a short claw and naked setae ; the posterior natatories 

 (the preceding pair also ?) laterally extended. None of the species of 

 Corycaeus seen by the author, combine contiguous conspicilla with the 

 other characters mentioned. 



