PYCNOGONIDS 28 I 



CLOTENIA OCCIDENTALIS sp. nov. 

 Plate XIII, fig. 9 ; plate xxiii, figs. 4-8. 



Type. — ^ , University of California, No, 19,511, Pacific Grove, Calif. 

 Trunk unsegmented, smooth, short, and broad, especially in front ; an- 

 terior outer corners rounded, without projecting knobs. Lateral processes 

 short and very closely crowded, the lines between them radiating toward 

 a common point slightly anterior to the caudal segment. 



Caudal segment well forward, rather short, thick, bluntly conical, 

 directed obliquely upward, armed on the dorsal surface with 2 or 3 short 

 stiff spines. 



Eye tubercle situated on the middle of the first trunk segment ; about 

 two thirds as high as caudal segment ; conical, nearly straight and vertical 

 anteriorly ; sloping behind ; thus giving, with the anteriorly directed face 

 of the caudal segment and the dorsal part of the trunk segments between 

 a saddle-shaped outline when seen from the side. The posterior, sloping, 

 face of the eye tubercle is notched, or ' hipped,' just above the eyes, the 

 portion above being a smaller cone set upon the anterior part of the 

 larger truncated basal cone. Eyes close together. 



Proboscis short and thick, barely twice as long as broad, directed 

 straight forward, cylindrical, bluntly rounded at the apex. 



Chelifori short, knob-like, connected at the base ; armed distally with 

 2 or 3 short spines. 



Palpi 4-jointed, not reaching to end of proboscis; nearly straight. 

 Joints I, 3, and 4 short ;/.2 long, half as long as the entire appendage, 

 considerably larger at its proximal end than distally ; j.4. with several 

 short stout spines distally; jy.2 and 3 each with 2 or 3 smaller ones. 



Oviger of male about three and a half times as long as palp. First joint 

 short, thick ; /.2 longer and more slender ; j'.^ equal in length to/.i ; jj.^. 

 and 5 each about equal to, or slightly longer than, 7.2 ; j.6 about as long 

 asy.3 ; j'.-j considerably smaller, coming off somewhat from the side of y.G ; 

 jj.S and 9 slightly smaller than y.7 ; j'.io a very small rounded knob. 

 The terminal part of the appendage bears a few scattered weak spines, 

 besides 2 longer, stouter, divergent ones on/. 10. 



Legs comparatively stout, anterior pair somewhat over twice as long 

 as body (measured from tip of proboscis to distal border of fourth pair 

 of lateral processes) ; posterior legs noticeably shorter than anterior 

 pairs. Coxal joints all short and of about equal length ; ^.i with a more 

 or less irregular projection distally on its anterior side, which is armed 

 with a few short spines. Femoral joint stout, somewhat shorter than 



