146 BULLETIN 46, UNITED STATES NATIONAL MUSEUM. 



Georgia, where Say's types were from. If my opinions in regard to 

 these two species are false, the name marginatus must at all odds be 

 given up and Julus americw-borealis* of Palis, de Beauvois be used in 

 stead. 

 This species must now stand as Spirobolus spinigerus Wood. 



6. Julus pusillus Say. Journ. Acad. Nat. Sci. Phila., 106, 1821 (preoccupied by 



Julus pusill us Leach, 1814). 

 Julus minutus Brandt, Recueil, — , 1841. 

 Julus sayii Newport. Ann. and Mag. Nat. Hist., 268,1844. 

 lulus Uneatus McNeill. Proc. U. S. Nat. Mus., 324, 1887 (Pensaeola, Fla.). 

 Nemasoma minutum Bollman. Proc. U. S. Nat. Mus., 405, 1888. 



As pusillus was preoccupied, Brandt, in 1841, proposed the name 

 minutus instead. But since this species belongs to the genus Nema- 

 soma of Koch it should now stand as Nemasoma minutum. 



7. Polydesmus serratus Say. Journ. Acad. Nat. Sci. Phila., 106, 1821 ( Virginia). 



Polydesmus canadensis Newport. Ann. and Mag. Nat. Hist., 265, 1844 {Hud- 

 sows Bay). 

 Polydesmus (jlaucescens Koch. Syst. Myr., 133, 1847 {North America). 

 Polydesmus pennsylvanictis Koch. Syst. Myr., 123, 1847 {Pennsylvania). 



This species on account of its rather imperfect description seems to 

 have caused considerable trouble in regard to its identification, Euro- 

 pean writers considering it the same as glauscescens Koch, and closely 

 allied to complanatus of Europe, in which they have been correct, while 

 American authors have referred to it another species — the moniliaris 

 of Koch. This latter species has the lateral carinas finely denticulate 

 and the squamiform divisions much elevated, while in serratus, accord- 

 ing to Say's description, the lateral carinas have only 3 or 4 denticula- 

 tions and the squamiform divisions low. 



8. Polydesmus granulatus Say. Journ. Acad. Nat. Sci. Phila., 107, 1821. 



Scytonotus scdbricollis Koch. Syst. Myr., 130, 1847. 

 Scytonotus Icevicollis Koch. Syst. Myr., 131, 1847. 



This well-known species, which was afterwards described as new by 

 Koch and made the type of the genus Scytonotus, should now stand as 

 Scytonotus granulatus (Say). 



9. Polyaenus fasciculatus Say. Journ. Acad. Nat. Sci. Phila., 108, 1821. 



This rare species still retains the name given to it by Say. 

 Its habitat is from Massachusetts to Indian Territory, and it does 

 not seem to be found in the North Central States. 



10. Lithobius spinipes Say. Journ. Acad. Nat. Sci. Phila., 109, 1821. 



Lithobius iransmar in us Koch. Gatt. Lith., 33, 1862. 

 Lithobius mordax Koch. Ibid., 34, 1862. 



Spinipes has always been identified by European and American 

 authors with the Lithobius forficatus of Linnaeus, but on account of the 



* Julus americce-borealis Palis, de Beauvois, Ins. d' Afr. et d' Amer., 155,1805. This 

 name has been reduced aud mutilated by Gervais and b'th'dr authors' #6 tiiitierivdnus, 



