THE MYRIAPODA OF NORTH AMERICA. 



55 



tennse long - , equal to the width of body. Eyes distinct, triangular; 

 ocelli more or less prominent, 40-70, arranged in 8-9 series. Segments, 

 f).">-<;r>. First segment with four rows of setigerous foveohe, sides striate. 

 Other segments moderately striate beneath, posterior division of each 

 segment marked with flue strife. Last segment produced into a short 

 spine, not projecting beyond the anal valves ; not smooth, densely pilose ; 

 anal valves not marginate, rough, densely pilose; anal scale, small, 

 rounded, pilose. Repugn atorial pore moderate, partly hidden by the 

 transverse suture, which is rather sharply emarginate. Pairs of feet 

 100-112j not extending much beyond the width of body, densely pilose. 

 Male: Mandibulary stipes strongly produced beneath. First pair of 

 legs large, uncinate, the inner surface with numerous tubercles, pilose. 

 Ventral margin of the seventh segment not much produced. Genitalia 

 exposed;, anterior plate thick, rounded, the end somewhat clavate and 

 scooped out, very pilose; posterior plate strongly twisted and rolled, 

 the apex divided into three plates, the anterior lanceolate, not serrated, 

 the others broad and thin, with the edges strongly toothed. Flagellum 

 not detected. Length of body, 20-38 mm ; width, 1.5-2""". 



Habitat. — Pennsylvania, Virginia, and Indiana. 



1 have examined numerous specimens of this species from Blooming- 

 ton, Indiana. Julus montanm Cope is identical with this species. 



Specimens not adult range as follows : 



Length. 



Width. 

 mm. 



mm. 



24 



1.6 



19 



1 



12 



.8 



Segments. 



Pairs of 

 feet. 



100 

 93 

 83 



Ocelli. 



40-7 

 35-7 

 27-6 



15. Parajulus canadensis (Newport). 



Julus canadensis Newport, Aim. & Mag. Nat. Hist., 267, 1844. 



Dark brown, almost black, sides with a series of yellow, conglom- 

 erated spots; feet very pale, antenna? scarcely paler. Rather slender, 

 not smooth, shining, nor pilose. Vertex rough, a slight median sulcus, 

 setigerous foveolre present. Antennae short, about equaling width of 

 body. Eyes distinct, triangular; ocelli rather flat, 43-50, arranged in 

 6-8 series. Segments, 56-57. First segment with sides striate. Other 

 segments moderately striate, numerous tailed-like punctations above. 

 Last segment produced into a large, strong, round, decurved spiue, 

 sparsely pilose; anal valves scarcely marginate, pilose; anal scale tri- 

 angular, pilose. Repugnatorial pore large, not touching the transverse 

 suture, which is broadly but not deeply emarginate. Pairs of feet, 

 86-93, stout, not equaling the width of body, sparsely pilose. Length 

 of body, 18-25"'™; width, 1.3-1.5""". 



Habitat. — Canada and Northeastern United States. 



