1895. 



PROCEEDINGS OF THE NATIONAL MUSEUM. 89 



First segment arched, the lateral augle rounded; the anterior margin 

 straight, the posterior with a shallow emargination, and on account of 

 this and the greater convexity of its posterior portion the segment 

 appears somewhat narrowed in the middle. Submarginal ridge of the 

 lateral margin gradually decreasing on the anterior and posterior mar- 

 gins. The surface of this segment, as well as that of the remainder of 

 the body, shows under the microscope a very fine granulation. 



Lateral carimi^ descending in the direction of the dorsal curve, and 

 making, in the contracted condition of the animal, a connected series, 

 since the pointed and somewhat ascending posterior corner of each carina 

 projects over the anterior rounded corner of the following segment. 



Kepugnatorial pores located in the middle of the marginal ridge, and 

 as the ridge slopes obhquely downward the pores are distinctly visible 

 from above as well as from tlie side. 



Last segment apically pointed-triangular; on each side of the upper 

 surface four more or less distinct wart-like prominences. 



Preanal scale broadly triangular, posteriorly with three rounded 

 points, of which the middle is the smallest. 



Legs hirsute, rather strongly granular, but the second joint with- 

 out a spine. 



Sternum of sixth segment of males with a rather long, three-lobed 

 process between the first pair of legs. 



Sternum of the fifteenth segment of males with a pointed, anteriorly 

 directed median process and a corresponding depression in the four- 

 teenth segment. 



Male genitalia with the basal joint very large. 



Males with the dorsum slightly less convex and the antennsTe slightly 

 longer than in the females. 



Young animals difteriug only in the more cylindrical body, the 

 peculiar structures of the sixth, fourteenth, and fifteenth segments 

 being well developed in young males. 



Color of dorsum and antennae dark reddish brown; the carinae, 

 ventral surface, and legs, brownish-yellow. 



Length of largest specimens, 85 mm.; width, 10 mm.; of the young, 

 25 mm. and,4 mm. 



LocalUij. — Dr. Peters says: "I found this species in rubbish heaps on 

 the island of Mozambi(iue and upon the peninsula of Cabaceira in the 

 month of December, at Querimba in May, and also at Tette." 



The animals which are referred to as young males are in the Berlin 

 Museum, and belong to a distinct genus. 



AULODESMUS OXYGONUS (Peters). 

 (PI. Ill, figs. 10-14; PI. YJ, figs. 4-7.) 

 EurydesmMs oxygonus, Peters, Reise nacli Jlossambique, Zoologie, V, p. 535. 

 First segment with a distinct obliiiue submargiiml ridge, which ap- 

 pears to be separated from the posterior, slightly convex margin by a 

 sharp corner. 



