146 Psyche [August 



specimens, only the anal plate region and the spiracular areas 

 retaining any marked color; antennae reduced to short stubs, 

 very indistinctly 4-segmented, bearing a few short slender 

 setae and several stout blunted setae at apex; legs also greatly 

 reduced, the different parts not distinguishable, claw present, 

 the claw digitules present, threadlike, curved, extending slightly 

 beyond the apex of the claw; spiracular grooves distinctly 

 deeper than in quinqiiepori, the heavy collar at the inner end 

 perhaps one-third to one-half as wide as in that species and the 

 spiracle itself placed almost immediately below and just inside 

 of the collar rather than at the inner end of a distinct mem- 

 branous tube as in quinquepori; no spiracular spines observed; 

 marginal setae stout, spinelike, tapering, Vv^ith swollen bases and 

 acutely pointed tips; beak small and short, apparently 1- 

 segmented ; dorsally with an occasional relatively large, circular, 

 apparently very faintly multilocular, disk pore, with much more 

 numerous, smaller circular pores with bilocular centers, scattered 

 uniformly over the surface, and with considerably smaller, 

 simple pores, probably in the aggregate more numerous than 

 the second sort, but tending to cluster into groups of four or 

 more, with wide intervals between clusters; ventrall}^ with 

 multilocular disk pores beneath and around in at least three 

 distinct arches anterior to the anal plates, these normally with 

 eight loculi and somehwat larger than the largest dorsal pore, 

 and with much smaller, apparently simple, circular pores with 

 oval centers, these arranged irregularly in distinctly segmental 

 bands across the middle portion of the abdominal segments, 

 but more numerous and less definitely arranged towards the 

 body margin; no dorsal setse observed except at body margin 

 and a scattered cluster just inside the opening of each spiracular 

 collar; ventral setae present, not especially numerous or cons- 

 picuous, scattered, except for some indefinite segmental rows 

 anterior to the anal plates, and most abundant on that portion 

 of the ventral surface behind the posterior spiracles; no sub- 

 marginal tubercles, such as maj^ be found in some genera in this 

 subfamily; the "submarginal compound pores" of quinquepori 

 not in evidence; anal plates surrounded by a heavily chitinized 



