CYCLOPOIDEA. J145 



than the second, and with one or two obsolete articulations towards 

 its apex. The next joint is rather short and enlarges outward ; the 

 next three make a single joint, the largest one in the antenna, and from 

 the first of the three there is a seta ; the following two are the pecti- 

 nated joints. The geniculating articulation is between the fourth and 

 fifth joints from the apex, or normally the fifth and sixth joints. 

 Both the fourth and fifth just referred to, correspond to two normal 

 joints. The posterior thoracic feet of the male are large : the right con- 

 sists of three joints; the first oblong and stout; the second much 

 larger, subovate, with a long thumb-like process from one side near 

 base ; the third a curving hook, longer than the preceding. In the 

 female these organs are small, simple, and naked, the right a little 

 larger than the left. 



The beak is flexed much inward. 



In some females the abdomen was distorted, as represented in 

 figures 7 h, *. Only a few of those seen were of this character. 



PONTELLINA SIMPLEX. 



Frons obiusiusculus. Cephalothorax subgracilis, capite obsolete discrete, 

 segmento postico brevi et perangusto. Oculi superiores subremoti, infe- 

 riores mediocres. Antennce anticce cephalothorace breviores, Q-articu- 

 latce, 100° divaricatce; setis totis brevibus. Styli caudales elongati. 

 [Abdomen 2-articulatum. An specimen adultum?~\ 



Front rather obtuse. Cephalothorax somewhat slender, head imperfectly 

 separate, posterior segments four, the last very narrow and short. 

 Superior eyes remote, inferior of moderate size. Anterior antennae 

 nine-jointed, much shorter than the cephalothorax, divergent about 

 100°, straight, all the setae very short. Caudal stylets elongate 

 and slender. [Abdomen two-jointed. Adult?] 



Plate 80, fig. 8 a, animal, enlarged ; b, posterior antenna. 



Collected, April 9, 1840, in the Pacific, latitude 32° 24' south, lon- 

 gitude 178° east, northeast of New Zealand. 



Length, one-twentieth of an inch. Colour, blue. This may be a 



287 



