1918] Chamberlin — Myriapods from Nashiille, Tennessee 27 



Number of somites 44 to 48. 



Average length near 50 mm. with diameter 4.8 mm. 

 Localities. Glendale Hills, south of Nashville. Nine specimens 

 April '21, 1917 and three specimens March 25, 1917. 



17. Parajidus pennsi/Ivanicus (Wooc'). 



Beyond Glendale, Oct. 14, 1916. One female apparently this 

 species. 



18. Parajulus nigrans sp. no v. 



The color is very dark, blackish throughout without definite 

 paler spots or annuli. Feet also dark. 



Body rather slender, obviously narrowing caudad. In general 

 smooth, not pilose, but a few stiff, somewhat curved setse on last 

 segment and anal valves. Somites strongly longitudinally striate 

 beneath and across lower part of sides. 



First segment long, with the lower margin straight; margined 

 below and over lower part anteriorly but not at all striate. 



The anal plate above is acute but is not at all produced; it is 

 clearlj^ exceeded by the anal valves and bears a series of setse along 

 its caudal margin. Anal valves mesally margined. 



Head with a median vertigial sulcus ending at a deeply impressed 

 arcuate transverse sulcus extending between the eyes. Nearly 

 smooth. JEyes triangular, each composed of about 36 ocelli ar- 

 ranged in 8 transverse series. 



Repugnatorial pore moderate, contiguous or nearly so with the 

 suture which is straight or rarely very slightly curved opposite the 

 pore. 



In the male the mandibular stipes strongly produced at the an- 

 tero-inferior angle, the apex of the process being on nearly the same 

 level as the inferior margin of the labrum. 



Each first gonopod of the male is placed antero-lateral of the 

 corresponding second one. Its anterior division is a flat plate about 

 half as high as the posterior division against which it lies ; its distal 

 end is rounded. The second or posterior gonopods rise clearly 

 above the anterior plates. Each above its base is a thin, flat 

 blade with edge subapical, which near its middle curves caudad and 

 then somewhat dorsad. Not at all narrowing dorsad, its free distal 

 end truncate; from the basal portion a slender acutely pointed 

 blade curves mesad and crosses the one from the other side. 



