76 University of California Publications. [Zoology 



ending: usually in sharp points, asymmetrical in the male. Abdo- 

 men of female of one or two segments : that of male of five ; asym- 

 metrical in both sexes. Anterior antennae of female 16-jointed; 

 grasping antenna with enlarged and broadened middle portion 

 (PI. 12, fig. 59), terminal portion 2-jointed. Mandibular blade 

 with blunt teeth : in the maxilla the second basal is hardly half as 

 long as the second lobe of the inner margin. The distal bristles 

 of the second maxilliped are long compared with the proximal 

 ones and sparsely spinose. Second maxilliped 5-jointed. Inner 

 ramus of first foot 3-jointed, that of second to fourth feet 2- 

 jointed. Fifth feet as in Lahidoccra, but the left foot in the male 

 has not even a rudimentary inner ramus. 



Pontellopsis occidentalis n. sp. 



PI. 11. figs. 47, 4.S, 49; pi. 12, fig. .-)9; pi. 13, fig. 68; pi. 14, figs. 92, 96. 



Female : The la.st thoracic segment ends in long points which 

 extend back farther than the middle of the abdomen (PL 11, fig. 

 48) ; abdomen very obscurely 2-segmented, asymmetrical, being 

 prolonged on the right side. Left fureal blade broader than the 

 right, but no longer. There is a knob-like protuberance on the 

 right side of the genital segment at the posterior border. The 

 anterior antennae extend back to the suture between the second 

 and third thoracic segments. The fifth foot is biramous, each 

 ramus l-jointed (PI. 13, fig. 68) ; the outer ramus ends in two 

 teeth of about equal length, and there is a tooth on the inner mar- 

 gin which is twice as long as the apical ones and much heavier. 

 The outer margin of the ramus has three short spines ; the inner 

 ramus is bifid at the tip, and half as long as the outer ramus. 



Male : The last thoracic segment ends in long points as in the 

 female, but is not quite symmetrical, since the point on the right 

 side is longer and bent slightly toward the left (PL 11, fig. 49). 

 The abdomen is not very asynmietrical ; the first and second seg- 

 ments have spines on the right side (PL 11, fig. 47). Fifth foot: 

 Right foot in the form of a forceps (PL 14, fig. 96) ; first joint of 

 outer ramus with a heavy, blunt process. The terminal joint of 

 the left foot (PL 14, fig. 92) is thickly pubescent on the inner 



