86 EAST AFIIICAX FOLYDESMOIDEA— COOK. vol. xviii. 



ASTRODESMUS STELLIFER, new species. 

 (PI. II, Mgs. 1-11; ri. Ill, figs. 1-9.) 



Vertex without hairs, polished and shining; sulcus distinct, meeting 

 a transverse shallow sulcus (and suture) between the antennal sockets. 



Clypeus smooth, even, excepting an oblique depression on each sid( 

 and a few coarse i^unctations below. 



Antenucie with basal joints very sparsely hairy, the distal gradually' 

 more hirsute. 



Mentum hirsute over the posterior two-thirds of its .surface. 



Stipes densely liirsute, a broad depression along the lateral edge, 

 especially distad. 



Lingual laminiTe very densely hirsute OA^er their entire surface. 



Segments dorsally apparently smooth, shining with a dull luster, 

 uniformly covered with minute, irregular, indistinct, impressed lines 

 and wrinkles, and very minutely and densely punctate. Posterior mar- 

 gins of all the segments more or less rough with fine longitudinal 

 notches or very short wrinkles. 



Anterior segments with the posterior subsegments slightly convex 

 anteriorly in the middle; broadly emarginate on each side of the con- 

 vexity. 



Lateral carina* about one- fourth as wide as the body cavity; margin 

 abruptly raised and thickened above, the edge entire, blunt; anterior 

 and posterior edges of carina* with a distinct, though fine, raised mar- 

 gin, which does not extend across the segments. Anterior carina? later- 

 ally curved slightly forward, the posterior corners at first right angles, 

 gradually more produced, until on posterior segments the rounded pro- 

 jection is more than half as long as the posterior subsegment. On pos- 

 terior segments the raised margin is gradually broader, until on the 

 penultimate it occupies the entire carina. 



Below the cariuic the segments are densely rugulose with fine, fiexu- 

 ous wrinkles; a small, subtuberculate, indistinct carina just above the 

 insertion of the legs. 



Anterior subsegments shining, very indistinctly marked with longi- 

 tudinal impressed lines. 



Last segment (see PI. Ill, figs. 3 and 4) very short, triangular, the apex 

 narrow, truncate, slightly rounded; superior lateral tubercle somewhat 

 above the level of the carina of the nineteenth, the inferior somewhat 

 below; the anterior tubercle near the sinuation, the posterior about 

 half way between the anterior and the ap.ex. The dorsal bristles close 

 to the margin; apical piliferous punctations rather close together, the 

 subapical somewhat farther apart; apex of segment thick. 



Anal valves moderately inflated, with compressed elevated margins; 

 rugulose, especially in the depressions. 



Preanal scale with surface nearly smooth. 



Sterna sparsely hirsute. 



