CYCLOPOIDEA. ;Q07 



antennae as long as the body, very slender, nearly straight, tips very 

 slightly behind the line of beak ; setae short, anterior apical nearly 

 as long as apical joint, the posterior penult quite as long as this joint, 

 the anterior apical but little shorter, the other subapical still shorter. 

 Right antenna of male nearly terete, the joints of the middle por- 

 tion slightly enlarged, but not coalescent. Abdomen three-jointed, 

 first joint longest and abruptly wider. Caudal stylets nearly as long 

 as abdomen, divaricate, setae sifbequal, about as long as abdomen. 



Plate 78, fig. 11 a, animal, enlarged ; b, extremity of antenna. 



Collected, March 22, 1841, in the Pacific, north of Depeyster's Is- 

 land, latitude 6° 4CK south, longitude 177° 30' east; also, in Paumotu 

 Archipelago, latitude 18i° south, longitude 136° west, August 13, 

 1839. 



Length, one-sixteenth of an inch. Colour, burnt sienna, more or 

 less generally diffused. This species is very near the preceding. They 

 differ in the subapical setae of the anterior antennae, in the abdominal 

 stylets, and in the cephalic part of the cephalothorax. 



The eyes constitute a very minute point or red spot. No inferior 

 eyes were observed. The cephalic articulation is distinct. The beak 

 is much incurved. The anterior antennae are very slender, and are 

 nearly in the same straight line, each falling but a little back. The 

 setae are all short ; those towards the base are a little longer than the 

 diameter of the joints and crowded ; the posterior penult seta is the 

 longest of those at the extremity. The part of the antennae beyond 

 the geniculating articulation in the right antenna of the male is four- 

 jointed, the first joint being arcuate, and corresponding to two joints in 

 the left antenna ; moreover, it is much shorter than the three joints 

 following. The anterior part of the body is not as narrow as in the 

 calanina, and the posterior angles of the cephalothorax are more pro- 

 longed. The maxillipeds were larger than the anterior legs, and had 

 the scoop-net form characteristic of Pontella. 



The posterior antennae are very short, and the branch which is 

 usually the longer is the shorter; the longer has two nearly equal 

 joints, with three bent setae at apex and others on the back of the first 

 joint. The setae of the shorter branch and of the following organs 

 are short. 



