42 BULLETIN 16, rMTKD STATK8 NATIONAL MUSEUM. 



Pairs of logs, 9 (54 to fi7. T.eiigtli ol" body. 9 30"""; width 1.3""". 



1 liiiveexamiiiod a imnibiT ofsin'ciincns collocted by Mr. .1. M. Hnrkc, 

 of IJkiali, Cal. This spccii's should be placed near (r. occitlnitalisyivi- 

 iiert, although it seems to bear little relation to the latter. 



12. Li^hobius eigenmanui, sp. nov. 



hiofimmH. — Allied to hiihobluH ohesuft Stnxberg, but the elaw of fe 

 male genitalia trii)artite; spines of anal feet 1,.'), 3, 0; eoxal pores more 

 numerous. 



Tifpe. — U. S. Nat. Mu.seum. 



Hahitat. — (llacier, British Colmnbia. 



Description ttf type. — Brown, feet paler, slender, moderately rough 

 posteriorly; bead seareely wider than long. Antenna' short, articles 

 20, short. Ocelli 8 to 12, arranged in 4 or 5 series. Prost^'rnal teeth 

 2 -f 2. Cox.'P of 13, 14, 15 ])airs of legs laterally arme<l. Coxal pores 3, 

 4, 4,3 to 4, 5, r», 5, large and louml. Spines of first pair of feet 1,2, 1 ; 

 penultimate pair 1, 3, 3,0 to 1, 3, 3, 1 ; anal pair 1,3, 3.0. Claw of female 

 genitalia tripartite; sjnnes (2 + 2) stout and short, inner shortest. 



Length of body 7.5 to 9""", width 1.1 to 1.5"""; antenna* ;» to o.r> ; 



anal legs 3.2 to 3.S""". 



I have examined a number of specimens collected by Mr. Carl H. 

 Eigennuum, to wliom I take great i)leasure in dedicating this sjiecies. 



13. Lithobius atkiiisoui. s\>. nov. 



iJiagnosis. — Anal and penultimate pairs of legs each armed with a 

 single claw; joints of antenna* 20, color chestnut. 



Type. — V. S. Nat. Mu.seum. 



Habitat. — Balsam, Jackson County, N. C. 



Description of type. — Chestnut, liead and antenuiv of a deeper shade, 

 legs orange. Slender, dorsal ])lates moderately smooth, especially an- 

 teriorly, very si)arsely pilo.se; head obcordate, length and width sub- 

 equal. Antenme sh(>rt, reaching to fifth segment, joints 20, small. 

 Ocelli 14-5. Pro.sternal teeth 5 -|- 5, small. Coxa of the ( ?) pairs of feet 

 laterally armed. Coxal pores 4, 5, 5, 4, small and round, Sjjines of first 

 pair of legs 2, 1, 1; ])enultimate and anal pairs 1, 3, 3, 2. Anal legs 

 somewhat swollen, tarsie of anal and penultimate pairs of legs sulcate 

 on inner side. Claw of female genitalia short, tripartite; spines 2 +2, 

 inner shortest. 



Length of body 12.5"'"', width 1.8"""; antenna^ 4"""; anal legs 5""". 



This species bears no relation to any known from North America; 

 in fact, it is the only one of the subgenus Lithobius with the i)enulti- 

 mate pair of legs armed with a single claw. 



I have examined one specimen collected by Prof, (ieorge F. Atkinson, 

 of the University of North Carolina, to whom 1 have the honor of dedi- 

 cating this species. 



