54 BULLETIN 46, UNITED STATES NATIONAL MUSEUM. 



scarcely emarginate. Pairs of feet, 71, extending beyond sides of body, 

 moderately stout, sparsely pilose. Length of body, 28-30 millimeters; 

 width, 2.3-2.5 millimeters. 



Habitat. — Fort Snelling, Minnesota. 



I have examined two female specimens, collected by Mr. Walter D. 

 Howe. 



From castaneus it is distinguished by the eyes, repugnatorial pore 

 and anal scale; it is also more robust, and differs somewhat in color. 



13. Parajulus castaneus, sp. nov. 



Color much as in J. impressus, but the lateral line of spots larger and 

 confluent posteriorly, a very dark line between the eyes, feet dark. 

 Moderately slender, rough, not pilose. Vertex very finely wrinkled, a 

 faint median sulcus, setigerous foveola? present. Antenna? moderate, 

 equaling width of body. Eyes distinct, triangular; ocelli, 54, arranged 

 in 8 series. Segments, 42-51. Sides of first segment striate. Other 

 segments deeply striate; above numerous fine stria? which have a num- 

 ber of short branches. Last segment produced into a moderate spine, 

 which projects beyond the anal valves, not pilose; anal valves not niar- 

 giuate, very sparsely pilose; anal scale obtusely rounded, rather small, 

 pilose. Kepugnatorial pore moderate, touching the transverse suture, 

 which is sharply sinuate. Pairs of feet, 66, equaling width of body, 

 rather slender, sparsely pilose. Male: Mandibulary stipes strongly 

 produced beneath. First pair of feet large, uncinate, numerous tuber- 

 cles on the inner surface, pilose. Coxa? of the second pair as in J. 

 impressus. Genitalia about half concealed, composed of three parts j 

 anterior plate round, the end strongly clavate, pilose; the middle plate 

 rounded, curving up in front of anterior and then backwards between 

 it, where it expands into an elongate, wavy plate; on the inner side it 

 is divided into three lobes or spines, the anterior large and placed at 

 the beginning of the expansion, the second small and placed near the 

 end, which is somewhat serrated, a lanceolate spine springing from the 

 base; posterior plate whip-like, curving upwards and inwards until they 

 meet, and then outwards. Flagellum not detected. Length of body, 

 30mm. w i,ith, 2 mm . 



Habitat — Fort Snelling, Minnesota. 



I have examined one male and one female, in a broken condition, col- 

 lected by Mr. George Howe. 



14. Parajulus penusylvanicus (Brandt). 



Julus pennsylvanicus Brandt, Recueil, 85, 1841. 

 Dark brown, a black median line and a lateral row of spots, feet pale. 

 Moderately robust, rough, pilose, each segment except the first having 

 two rows of setigerous foveola? placed on the posterior division, the first 

 row on the anterior third and the other along the posterior border. 

 Vertex with a faint median sulcus, setigerous foveola? present. An- 



