THE MYRIAPODA OF XORTH AMERICA. 51 



rior segment. Eyes indistinct, sub circular; ocelli 45, arranged in 8 

 series. Segments, 48. Sides of first segment acute, margin a to, ante- 

 rior border sinuate, moderately smooth; second segment strongly pro- 

 duced and turned forwards, the lobe quadrate. Other segments densely 

 punctate, and with numerous short lines; stri;e moderate, concentric. 

 Last segment rounded, smooth; anal valves not inarginate; anal scale 

 transverse. Repugnatorial pore small, placed in the anterior division, 

 suture bent. Pairs of feet, 00, about equaling the width of body. 

 Length of body, 75"""; width, 10""". 

 Habit nt St. Vincent. Lower California. 



I have one broken example of this species from the above locality, 

 collected by Mr. Charles R. Orcutt, of San Diego, Cal. The specimen 

 before me agrees with the short description given in the journal cited 

 above. 



10. Spirobolus spinigerus Wood. 



Sl>in>l>oltin Nitiiiii/i't-iix Wood, Proc. A<-ad. Nat. Sci. Pliila., !.">, 1864 (Florida and 

 South Carolina). 



Dark greenish brown or black, segments edged with brownish red, 

 feet and antenna- red. Moderately robust, anterior segments some- 

 what attenuate, barely crassate, only the anterior and posterior seg- 

 ments punctate, rest smooth. Vertex smooth, very finely and sparsely 

 punctate, punctatioiis not numerous between eyes, sulcus barely contin- 

 uous; clypeal foveohe 10-12. Antennas moderate, usually reaching the 

 middle of second segment. Eyes indistinct, subtriangular; ocelli, 35-45, 

 arranged in (i or 7 series. Segments, 45-52. First segment with the 

 sides subacute, margiuate, anterior margin sinuate, smooth, finely 

 punctate; second segment not much produced beneath. Other segments 

 smooth, not punctate, stria?, of the anterior segments weak, not much de- 

 curved, more so posteriorly. Last segment smooth, finely punctate, 

 pointed. but not passing the anal valves ; anal valves inoderetely smooth ? 

 marginate; anal scale rounded. Repugnatorial pore large, placed on 

 the anterior part, suture bent. Pairs of feet, 84-98, not extending much 

 beyond sides of body. Male: coxa? of the third and fourth pairs of feet 

 produced into long appendages. Ventral plate produced into a lobe ? 

 as in nturfihifitus, but longer and more slender, (ienitalia: inner part 

 of anterior plate higher than the ventral lobe, rough, sinuate on the 

 upper edge near the outer side, external part with the end curved 

 sharply backwards and outwards; posterior plate divided as in ninrtii- 

 nutiiK, upper lobe or part grooved, the end rounded, a sharp, robust 

 spine on the inner side, the lower or inner lobe thin, the end angular. 

 Length of body. DO-SO'"'"; width. 5-JI'"" 1 . 



Iliiliitnt. Florida and South Carolina. 



I have examined numerous specimens of this species from Pensacola, 

 Florida. 



