II IK MVRIAPODA OF NORTH AMERICA. 41 



Coxal pores i\vo; anal legs of male strongly crassate; pairs of legs, g 47 to 

 in. o r>ito53; dorsal plates with a broad, double, black median 



line ccjilnilii-iis WOOD. 



cc. Coxal pores more tlian two. 

 (I. Pairs of legs, 9 51; coxa of anal le- m>t strongly inflated, pores large, ten 



or t welvc, subseriate mtinlds .MEINEKT. 



dd. Pairs of legs, $ 71, $ 67; coxa of anal legs strongly inflated; pores 

 aliont same number, large and small, partly concealed by ventral 



plate mcciii BOLI.MAN. 



art. Frontal plate al>sent. 

 ft. Anal pores absent. 



o. Coxal pores absent; coxa of prehensorial legs armed ; pairs of legs, ^ (i7 to 



till. 9 61 to 65 InjimiH-tiwpH WOOD. 



cc. Coxal pores present. 



d. Coxal pores one, concealed ; prebasal plate concealed : coxa of prehensorial 

 feet twice as long as wide; pairs of feet, $fil..</f<>r<ii((>inx MKIXKRT. 

 dd. Coxal pores two. 



e. Prebasal plate concealed; anterior coxal pore hidden by ventral plate; 

 teeth of prehensorial legs distinct; pairs of legs, $ 67 to 69, 961 to 



66 perforatii* (MeNEiLL).* 



ee. Prebasal plate exposed as in ccj/linlii-iix; coxal pores like per fora tits; 

 teeth of prehensorial legs very indistinct ; pairs of legs, $ 61, 9 



63 okolontr BoLLMAX.t 



bb. Anal pores present; coxal pores arranged in two partly covered series; 

 pairs of legs. 9 61 Intro MKINKRT. 



11. Geophilus californiensis, sp. nov. 



Diagnosis. (Frontal plate absent? anal pores present); attenuated 

 from head backwards; coxa of prehensorial legs unarmed; antenna- 

 long; coxal pores rather large, over 30; pairs of legs, 9 64 to 67. 



Type.\j. S. Nat. Museum. 



Habitat. Ukisih, Cal. 



This species may be easily separated from those which have the 

 "frontal plate absent and anal pores present'' by the characters assigned 

 in the diagnosis. 



The following is a complete desfription of type: 



Keddish orange, head darkest, rather robust, widest before, moder- 

 ately smooth, sparsely pilose. Prehensorial legs reaching to base of 

 second antenual joint; coxa longer than wide (4. ">:'>), unarmed; tooth 

 small. Cephalic plate sparsely pilose and punctate, the latter forming 

 two sulcations, longer than wide (7:5); basal plate partly concealed, 

 thrice as wide as long: prebasal not exposed. Antenna- long, joints 

 long, penult, and antepenult, shortened. 



Dorsal plates distinctly bisulcate; anterior predorsal plates short, 

 posterior longest: ventral plates with an indistinct median depression. 

 Spiracles round, anterior large, median and posterior small. First pair 

 of legs short, anterior and posterior subequal, former stouter. 



Coxa of anal legs strongly swollen, pores rattier large, over 3D; last 

 ventral plate moderately wide <l.~>: L'I, sides converging. 



' Xrl,cti(li/li( .' per !'<<( I it* Mc.NVill, 1'roc. U.S.Nat. Mns.. :;_':.. INN?, i IVnsaenla. Fla. > 

 t Geophilttx okohnm 1 Bolluiau. Eut. Amer., .">. 1888. (Okolona. Ark.) 



