Cope.] -'-^^ [Julj-IG, 



longitudinally (with the axis) coarsely many striate. Posterior annuli 

 but slightly compressed, the last unarmed. Diameter of anterior seg- 

 ments rapidly decreasing to the head. Lateral pores not distinct on ante- 

 rior segments. An imjjressed line crosses the latter at the inner lateral 

 pore. Basilar segment smooth, not emarginate in front . Front sparsely 

 hairy ; lateral region ratlier prolonged, openly emarginate. The anteunse 

 as in the other known American species of this family, are elongate and 

 hairy, the relative lengths of the joints being : third longest, 3, 5, 4, 2, 7, 

 8, 1. Eyes in well developed triangular patches in depressions behind 

 the antenna}. 



Length 11 lines ; diameter 1.1 line ; segments of specimens of consid- 

 erably larger size, while two taken in copula were rather smaller. Color 

 varying from a nearly white to a pale red. 



Taken in Erhart's Cave, Montgomery Co., and Spruce Run and Big 

 Stony Creek caves, in Giles Co. 



PSEUDOTREMIA YUDII, CopC, Sp. fiOV. 



This species differs much froiTi the last, and resembles rather P. c a e s i o- 

 annulatus of Wood. The points separating it from the latter will be 

 pointed out below. 



Number of segments same as in the B. c a v e r n a r um, twenty-nine, 

 but they are neither convex nor rugose nor coarsely striate, but marked 

 with a very minute, irregular longitudinal striation. Segments cylindric, 

 without shoulder, but with a small point directed backwards on the pos- 

 terior margin of the lower part of the annulus, which is enlarged on the 

 front segments. This elevation is furnished on the anterior and posterior 

 regions, and probably everywhere, in an uninjured condition, with a 

 bristle. On the anterior segments a hair in front of each pore. Front 

 plane, with finer and coarser hairs sparsely distributed. Labral margin 

 with an open notch. Antennge hairy, with a bristle at the distal extremity 

 of each joint. Lengths, 3rd, 5th, 4th, 2nd, 8th, 7th, 1st; the eighth joint 

 longer than in A. c a v e r n a r u m. Eye patch triangular, not in a depres- 

 sion. Posterior segments considerably oompressed, the last scutum with 

 four transparent marginal bristles ; extremity of body slightly I'ecurved. 

 Total length, eleven lines. 



Color pinkish-brown, with a pale band from below to the external pore 

 on each side of each annulus. Top of head black. 



A single specimen, the exact locality not preserved, but probably Mont- 

 gomery Co., and, I think, not from a cave. I have conferred on it the 

 name of my friend Dr. H. G. Wood, Jr., to wliom we are indebted for a 

 system of the Myriapoda, and the means of studying the American 

 species. It differs from the A. caesioannulatus of his monogl-aph, in the 

 rounded dorsum without keel or groove, the 29 instead of 32 segments, 

 and the coloration. The eye patches are not in a depi'ession, nor is the 

 labrum deeply emarginate, as Wood describes. 



