30 XorlJi Ainericdn JuUdce. 



letween the eyes, medi?m sulcus interrupted ; clypeal foveolie 8. An- 

 tennae short, not quite reaching- the posterior margin of anterior seg 

 menl. Eyes distinct, trapezoidal ; ocelli, 45, arranged in 7 series. 

 Segments, 49. First segment with the sides sub-acute, marginate,. 

 anterior border sinuate ; second segment with the lobe less broad 

 and more triangular than in luarginatiis. Other segments moderately 

 rough, punclatioiis most numerous on the posterior division ; strife 

 decurved, strong and rib like on the posterior division of the segments. 

 Last segment pointed, not passing the anal valves, densely punctate; 

 anal valves marginal e. rough ; anal scale rounded. Repugnatorial 

 pore large, placed on the anterior division ; suture moderately bent. 

 Pairs of feet, 92, moderately extending beyond the sides of body. 

 Length of body, 80 mm. ; width, 9 mm. 



Habitat, Pensacola, Florida. 



I have had one female of this species for examination. It is 

 more related to marginatiis than any other of onr North Ameri- 

 can species. From marginatum this species is easily separated by 

 the distinct attenuated body, clypeal foveolae, form of second 

 segment, arrangement of llie ocelli, and color. 



7. SPIKOBOLUS UNCIGERUS Wood. 



Spirobolus uncigems\^oo(\., Proc. Acad. Nat. Sci. Phila., 15, 1864 (Cali- 

 fornia). 



Dark brown, edge of segments lighter, an indistinct light median line ; 

 feet chestnut. Moderately robust, a little crassate, not attenuated, 

 only a few anterior segments flattened beneath, not smooth. Vertex 

 moderately smooth, distinct reticulating lines, sparsely punctate, me- 

 dian sulcus interrupted ; clypeal foveolae 8. Antennae short, not 

 reaching the posterior border of anterior segment. Eyes indistinct, 

 sub-triangular ; ocelli, 32, arranged in 7 series. Segments, 49. First 

 segment with the sides acute, marginate, anterior margin excised, 

 rough, densely punctate ; second segment moderately produced be- 

 neath, rounded in front. Other segments rough, densely punctate ; 

 numerous short lines, striae strong, not much decurved. Last seg- 

 ment aoutely rounded, not passing the anal valves, densely punctate ; 

 anal valves marginate ; anal scale rounded. Repugnatorial pore mo- 

 derately large, placed in the anterior part, sulcus extending back- 

 wards, deep, transverse suture bent. Pairs of feet, 86, equaling the 

 width of body. Male : coxae of the third pair of feet produced from 

 beneath into a long, spatulate appendage. Ventral plate moderately 

 produced in the middle into a sharp point. Genitalia : inner part of 

 the anterior plate twice as high as ventral plate, inner angle somewhat 



