88 EAST AFRICAN POLYDESMOIDEA—COOK. vol. xviii. 



ASTRODESMUS LURIDUS, Karsch. 

 (Pl.IV, figs. 11, 12.) 

 Enrydesmns Iiiridus, Karsch, Troschel's Archiv f. Naturw., p. 43, 1881. 



Segments convex, nearly smootli, the sides slightly rugulose. 



Male genital appendages broad, somewhat compressed, pilose with 

 long hairs, constricted in the middle; falciform process and tooth en- 

 tirely wanting. 



Color dirty testaceous ; carinre testaceous yellow; also a large subdis- 

 ciform spot on the posterior margin of cariniferous segments, strougl}- 

 narrowed at the sides. 



Length, about 45 mm.; width, 11 mm. 



Locality. — INIombassa. A male specimen collected by Hildebrandt is 

 in the Berlin Museum. 



"A species easily distinguishable from all others previously known 

 by the dirty color and the yellowish spot of the cariniferous segments, 

 and especially by the form of the male genitalia, presuming the (type) 

 specimen to have been mature." 



The genitalia of the type of this species were either broken off or 

 the specimen was iiiunature. In the Berlin Museum are a number of 

 young Astrodesmi comparable with this species, but I have not seen 

 the type. 



AULODESMUS MOSSAMBICUS (Peters). 

 (PI. Ill, figs. 17, 18; PI. VI, figs. 1-3.) 



rohjdesmus mossamhicus, Peters, Mouatsber. d. K. Preiiss. Akad. d. Wiss., Ber- 

 lin, p. 81, 1885. 

 Enrydesmns mossamhicus, Peters, Eeise nach Mossambique, Zoologie, V, p. 533. 



Body convex; vertex smooth, the sulcus distinct. Antennfe extend- 

 ing to the third segment, joints 3, 4, and 5 equal, the second slightly 

 shorter, the sixth slightly longer, the seventh very short. 



First segment narrow, the lateral angle rounded-triangular, the mar- 

 gin thickened. Segments smooth. Lateral cariuiP quadrangular, the 

 margin thickened, the anterior angle rounded, the posterior acute. 

 Last segment triangular, rounded at apex, above with four wart-like 

 prominences. 



Preanaal scale tringular, tridentate at apex. 



Length and breadth of adult 85 and 16 mm, ; of young, 25 and 4 mm. 



Locality. — Island of Mozambique, Cabaceira, Rios de Sena, Querimba. 



This species was later described at greater length among the Myri- 

 apoda of Mozambique, as follows: 



Body broader than high, convex. 



Vertex with a fine sulcus. 



Antenna? finely hirsute, of moderate length, reaching to the third 

 segment when laid back ; the basal and terminal Joints are very short, 

 the others gradually decreasing from the second to the sixth; the third, 

 fourth, and fifth differing but little in length. 



