1918] Myriopods from Georgia and Louisiana 373 



Nemasoma pium sp. nov. 



This is a muph larger species than the minutum of Brandt, so common 

 in the northeastern states, the type being near 25 mm. in length, with a 

 diameter of l.G mm. 



The general color is brown, with a distinct middorsal longitudina 

 black line and a series of black dots along each side over the repugna- 

 torial glands. The posterior region of each segment is darker than the 

 anterior and a line along the suture is blackish. No light areas, such as 

 occur in sayanum. 



Repugnatorial pores large, each contiguous with the suture, which is 

 moderately curved about it. 



The lower end of the first tergite on each side narrows to an acute 

 angle just above which the anterior edge is moderately incurved. 



The last tergite exceeds the anal valves. It narrows subtriangularly 

 but is distally truncate, or very obtusely rounded, differing in this 

 conspicuously from that of minutum and approaching that of sayanum. 



Locality. — La.: Creston. March 21, 1915. One female. 



Parajulus robustior sp. nov. 



This is an exceptionally robust species. The general color is brown, 

 each somite showing near its middle a solid annulus of a deeper, some- 

 what chestnut, color, and in front of this above and separated from it 

 by a narrow pale stripe, a blackish band enclosing a series of light dots, 

 while the anterior border above the level of the pores is bluish. There 

 is a broad black band connecting the eyes. There is a median dorsal 

 longitudinal black line and a series of small black dots along each side 

 (the repugnatorial glands). 



The cardo of the mandibles in the male strongly produced ventrad, 

 attaining to near lower level of labrum. 



Each segmental suture is strongly angularly at' the level of the 

 pore. A characteristic feature is presented in the last tergite, which 

 exceeds the anal valves, being produced into an acute spine, which is 

 strongly, evenly decurved in the male, less so in the female; this spine 

 proportionately much shorter than in canadensis. 



The first tergite in the female is angular below, but in the male 

 the lower border is long, the edge horizontal. Strongly margined below. 

 Without distinct striae. Other segments strongly striate below. The 

 second tergite in the female much extended below level of the first. In 

 the male the second and third tergites are strongly angularly extended 

 into a ridge along the lower level of each side. 



The first legs of the male are strongly crassate, unusually long and 

 strongly hooked. 



Promentum of gnathochilarium in male much enlarged; oblong 

 elliptic in form. 



The species seems to be strongly distinct in the structure of the male 

 gonopods. The sixth and seventh segments are moderately extended 

 below. Of the anterior gonopods the anterior process on each side is 

 strongly clavate, the distal portion above its base subcorneal, apically 



