1152 



CRUSTACEA. 



short distance posterior to them. The right of the two spinous pro- 

 cesses at the posterior extremity of the cephalothorax was abruptly 

 bent outward in the male. The caudal stylets are about twice as 

 long as broad ; and the setae are as long as the abdomen. The ante- 

 rior antennae extend laterally (after the basal curve) nearly in the 

 same straight line, the tips curving a little forward. The longish 

 setae at the apex of the second, third, and fourth joints are three or 

 four times as long as the diameter of the joints. The last three 

 joints of the antenna are very nearly equal. The posterior antennae 

 are a little stout; and the shorter branch hardly exceeds half the 

 longer. The right posterior foot of the male is geniculate; it has the 

 first joint oblong, the second narrow at base, and then abruptly en- 

 larged, so as to be in the following part of a Pecten shape. The third 

 joint or finger is stout, bent, and articulated with the lower angle of 

 the Pecten-shaped joint. 



f Seta antennarum anticarum apicalis subapicalibus longior. 

 PONTELLINA RUBESCENS. 



Feminae : — Frons rotundatus. Cephalothorax Q-articidatus, capite dis- 

 crete, segmento septimo obsolete, angulis posticis acutis. Oculi superiors 

 remoti; inferiores quoad pigmentum bilobati. Antennae anticos cepha- 

 loihorace non longiores, fere 120° divaricates et rectw; setis brevibus, 

 apicali vix longiore quam articulus. Ramus major antennarum posti- 

 carum fere triplo longior. Styli caudales elongati, paralleli. [Abdo- 

 men 3-articulatum.'] 



Front rounded. Cephalothorax acute behind, six-jointed, head sepa- 

 rate, posterior segments three, besides a fourth which is very short. 

 Superior eyes remote. Pigment of inferior eyes bilobate. Anterior 

 antennae scarcely as long as the cephalothorax, very nearly straight, 

 divergent about 120° ; setae short, apical seta not longer than the 

 apical joint, subapical shorter, the posterior penult shortest. Shorter 

 branch of posterior antennae hardly one-third the length of the 

 other, the longer slender, with long setae. Caudal stylets parallel, 

 rather longer than half the abdomen. [Abdomen three-jointed.] 



Plate 78, fig. 13 a, animal, enlarged; b, extremity of the antenna. 



