OF WASHINGTON. 307 



The cephalic lamina is broader than long, but is exceeded in width by 

 the very broad basal lamina; frontal lamina not distinct. 



Coalesced coxae of prehensors with chitinous lines, broadly emarginate 

 in front; femur and claw unarmed. 



Scuta not sulcate, the surface uneven, hirsute with long hairs; sterna 

 also hirsute and uneven, the poriferous area distinctly prominent, but not 

 so strongly as in Ballophilus. 



Last sternum subtriangular, posteriorly truncate ; pleurae scarcely promi 

 nent, the two large pores concealed under the sternum; joints of anal legs 

 very short and robust, decreasing in breadth and increasing in length dis- 

 tad ; from the last sternum to the ends of the legs extends on each side a 

 row of hairs larger than those which cover the adjacent parts ; the last 

 joint is conic and without a claw. 



Two specimens were secured in an open area near the shore 

 of the north side of Sugar Loaf Key. 



FAMILY GEOPHILID^E. 



Two members of this family were secured on the Keys. One 

 is a new species evidently referable to the genus Polycricus, the 

 type of which is P. toltecus Saussure. The second has affinities 

 with the genus Piestophilus Cook, from the West Indies. The 

 mouth-parts of Piestophilus are unknown, but those of the new 

 form are so remarkable that, in addition to the other unique char 

 acters, they seem to warrant the recognition of a new subfamily, 

 Piestophilinaa, to be distinguished from the Geophilinae by the 

 coalescence of all the parts of the labium except the apical joint 

 of the labial palpus. 



POLYCRICUS FLORIDANUS, new species. 

 (Plate IV, figs. 2a-2f). 



Type. U. S. Nat Museum, No. 778. 



Locality. --Sugar Loaf Key. 



Length 55 mm., width 1.5 mm., pairs of legs of male 59, of female 61-63. 



Color of alcoholic specimen rather dark, dull brownish, laterally mot 

 tled with purplish, and with rather faint indications of two parallel dorsal 

 bands. 



Cephalic lamina two-thirds as broad as long; frontal lamina coalesced; 

 basal lamina rather narrow, the sides strongly converging. 



Coalesced coxas of the prehensors without chitinous lines, the surface 

 moderately punctate; femur with a distinct, blunt tooth somewhat above 

 the middle ; claw armed at base with a large, blunt tooth, and denticulate 

 along the middle of its mesial edge. 



Scuta bisulcate; sterna with a large and deep median foveola which di 

 vides the transverse poriferous band. 



