CYCLOPOIDEA. 



1219 



2. Antennje posticus microdactyly; digitus articulo 2do brevior. 

 A. Seta articuli antennarum posticarum 2di nuda. 



* Styli caudales abdomine non breviores. 



a. Digitus antennarum posticarum articulo 2do paulo brevior. 



CORYC^EUS LAUTUS. 



CephalotJiorax ad segmentum quartum oltusus. Conspicilla remotius- 

 cula. Antennce a?iticce longissimh setulosce. Antennarum posticarum 

 articulus 2dus digito paulo longior, setd longd, nudd, digito subcequi 

 2-articulato, et ad basin setam nudam longam ferente. Abdomen 

 2-articidatum, segmentis fere cequis, lmo paulo latiore. Styli caudales 

 tenuissimi, abdomine valde longiores, setis perbrevibus. 



Cephalothorax with fourth segment obtuse behind. Conspicilla rather 

 remote. Anterior antennae slender, setge long. Finger of posterior 

 antennae a little longer than half the second joint, joints of finger 

 subequal, near the articulation a short spine, and at base another 

 spine nearly as long as the finger. Abdomen two-jointed, segments 

 nearly equal, the first a little the stouter. Caudal stylets very 

 slender, much longer than the abdomen, setae very short. 



Plate 85, fig. 12 a, a', animal, enlarged; b, posterior antenna; c, 

 two pairs of maxillae ; d, the maxillae and the anterior feet (or maxil- 

 lipeds), in position (nearly), figure not quite completed; e, extremity 

 of one of the natatory legs that extend laterally. 



Pacific, near the Kingsmills, April, 1841. 



Colourless, except a little orange-red near the mouth, and in the 

 posterior pair of natatories, which are extended laterally in the na- 

 tural position of the animal. This species differs from the following 

 under this subdivision, in having the last cephalothoracic segment 

 obtuse, and in other characters. Several of the setae of the anterior 

 antennae are as long as the organ. The caudal setae are less than 



