36 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 



on posterior portion of head with on each side of this two short sulci 

 parallel to the corresponding arm of the v and on each side parallel 

 with the margin a long furrow extending from a little in front of the 

 caudal margin forward and dorsad of upper edge of ocellus where it 

 joins the transverse furrow or constriction. 



Ocelli large but smaller than in sokarienus, etc. 



Antennae very long, being more than half the length of the body. 

 Articles 43, of which the second is as usual relatively very long, the 

 next twelve being short and compactly telescoped, those distad of 

 these being more slender and more loosely joined; the first ten articles 

 immediately distad of these precede a much longer one which in 

 turn is succeeded by shorter ones than which the four preceding the 

 ultimate are much longer; ultimate article very long. (Plate 6, fig. 9). 



Prosternum twice as wide as greatest length or nearly so. Anterior 

 margin semicircularly curved forwards. Teeth 3+3, of which the 

 outermost on each side is more removed than the innermost from the 

 median one. 



Dorsal plates with median portion well elevated; a deep wide fur- 

 row immediately mesad of each lateral and somewhat upturned mar- 

 gin, a second narrower sulcus occurring a little mesad of this while 

 between this and the median longitudinal furrow are several shorter 

 sulci. Posterior angles of the sixth, seventh, ninth, eleventh, and 

 thirteenth dorsal plates produced, the corners of the seventh being 

 least extended of these. 



Ventral plates transversely wrinkled, two to four but mostly 

 two of the sulci being conspicuously deeper than the others. 



Legs proportioned as in the previously described species, the tarsi 

 being conspicuously slender with the first joint very long. Tibial 

 process present on all fifteen pairs of legs. (Anal leg shown in Plate 

 4, fig. 9). 



Coxal pores small and circular; 3, 3, 4, 4, 4. Ridges limiting the 

 depressed porigerous area of moderate height, the two edges converg- 

 ing to a median keel on distal portion of coxa. 



Gonopods of female with claw long, well curved, rather slender and 

 acutely pointed. Basal spines as usual, the inner ones of each pair 

 in ventral view presenting its edge and thus a much more slender out- 

 line than the outer one. 



Length 10.5-11 mm. 



LOCALITIES. Virginia (Natural Bridge!); Tennessee (Johnson 

 City!). 



