152 BULLETIN 46, UNITED STATES NATIONAL MUSEUM. 



12. Fontaria virginiensis Koch. Syst. Myr., 141, 1847 (North America) • Die Myr., r, 



71, pi. 32, fig. 62, 1863. 



The specimens Koch has referred to the Julus virginiensis of Drury do 

 not belong to that species, bnt seem to be very close, if not identical, 

 with Fontaria butleriana Bollman from Indiana. His figures represent 

 a distinct, narrow, yellow band along the posterior margin of the seg- 

 ments as in the latter species. 



13. Fontaria coriacea Koch. Syst. Myr., 141, 1847 ( Virginia) ; Die Myr., i, 72, pi. 32, 



fig. 63, 1863. 



A valid species of which Polydesmus corrugatus Wood is a synonym. 

 His specimens have a yellow band along the posterior margin of the 

 segments as is the case in the eastern specimens of coriacea. 



14. Fontaria oblonga Koch. Syst. Myr., 142, 1847 (Pennsylvania) ; Die Myr.,i, 73> 



pi. 32, fig. 64, 1863. 



A valid species belonging to the same group as castanea, tennesseensis, 

 and pulchra, and perhaps closely allied to the latter, from which it is 

 separated by the superior position of the repugnatorial pore. Koch's 

 specimens, as indicated by the color, were probably not full grown. 



15. Scolopendropsis helvola Koch. Syst. Myr., 175, 1847 (North America) ; Die Myr., 



ii, 34, pi. 76, fig. 156, 1863. 



Identical with Scolopocryptops sexspinosus (Say). From this and two 

 other species Koch has redescribed it seems as if he was unaware of 

 Say's paper on the North American Myriapods. 



Indiana Univeesity, March 15, 1887. 



