Occasio)ial Papers of the Museum of Zoology 29 



Lower end of collum but little inflexed ; lower margin 

 nearly straight ; anterior angle well rounded, the posterior 

 slightly obtuse. Six striae on each side above marginal one, 

 these uniform and moderately fine and in part wavy. (See 

 PI. 13, Fig. .90.) 



Covered region of prozonite only obscurely striolate, 

 exceptinj^- the stria most caudal in position, which is distinct. 

 The suture is sharply impressed and smooth throughout. The 

 pore is contiguous with the suture on its caudal side. Sur- 

 face of segments in general seen under lens to be tubercular 

 and in part obscurely rugose, the tubercles not close. ^leta- 

 zonites striate only beneath. 



Last tergite caudally obtusely angled. Anal valves with 

 mesal borders only moderately elevated. Anal scale sharply 

 set off from the annulus, conspicuously angled from behind, 

 as shown in PI. 13, Fig. 91 ; exposed portion of venter of last 

 annulus smooth, not at all transversely striate. 



Number of segments, 66. 



Length, about 76 mm. : width, 4.5 mm. 



Colombia: San Lorenzo; July 2, 1913. One female in. 

 log at 4.500 feet elevation. Also one from a stump at same 

 elevation, July 5, 1913. 



Cincinnati coffee plantation; July 2, 1913 : A. S. Pearse. 

 Two females under stone in cornfield. 



San Lorenzo; July 13. 1913; 4.500 feet. Two females. 

 Also, July 14, 1913. one not fully mature male at 2,000 feet. 



One female without definite locality. 



Holotype. M. C. Z.. 5,092. 



At once recognizable among the other spirostreptid species 

 secured by the position of the repugnatorial pores and the- 

 weaklv scabrous character of the surface of the segments. 



