Mr. R. I. Pocock on East-African Millipedes. 441 



c? . Slenderer than female ; collum not modified ; angle of 

 mandible larger ; feet not padded. 



Number of segments about 50. 



Length about 50-55 millim. 



Loc. Ngatana. 



I think there is no reason to doubt that this species is con- 

 generic with Glyphiulus magnus of Karsch (Zeits. Naturw. 

 (3) vi. p. 14, 1881), which Mr. O. F. Cook has made the 

 type of his genus Lophostreptus. The two, indeed, might be 

 identical but for Karsch's statement to the effect that the 

 tergites in magnus are scarcely visibly segmentate, whereas 

 in L. armatus the sulcus is very deep. 



Odonlopyge Gregorii, sp. n. 

 (PL XVIII. fig. 7.) 



$ . — Colour. Segments blackish or very deep green, with 

 a clearly defined yellow band running along the hinder border 

 from base to summit ; the anterior covered portion yellow, 

 with a fine median dorsal black line ; legs also entirely yellow ; 

 collum or first tergite completely bordered with yellow; an- 

 teniige yellow at the base, for the rest deep green ; lower half 

 of head yellow, upper black ; anal valves finely margined 

 with yellow (the green and yellow were probably black and 

 red respectively before immersion in alcohol). 



Head smooth and polished, with a conspicuous frontal 

 sulcus ; a fine impression running from eye to eye ; eyes with 

 inner angle not very noticeably acute ; a shallow impression 

 close to the socket of antenna on the interantennal area ; six 

 pores above the labial impression and four close to the margin 

 on each side of it. 



Antennce moderately long, with the distal segments (4 to 6) 

 strongly narrowed at the base. 



First tergite crossed below with two sulci in addition to the 

 one that defines the border. The segments finely striolate 

 above ; the transverse sulcus strong and deep, the area in 

 front of it finely striate transversely, the area behind strongly 

 grooved longitudinally at the sides ; on the anterior segments 

 these grooves are deeper and run up above the pores, but 

 posteriorly they become gradually weaker, do not surpass the 

 pores, and almost die away. 



Sterna smooth. 



Pores moderately conspicuous, well behind the sulcus. 



Anal tergite not carinate, posteriorly acutely angled ; valves 

 with margins not grooved, the teeth small and vertical ; 

 sternite triangular. 



Ann. & Mag. N. Hist. Ser. 6. Vol. xvii. 31 



