Millipedes from N. Somaliland. 187 



Cormocephalus mirabilis, Porat. 



Cormocephalus mirabilis, Porat, Bih. Sv. Vet.-Akad. Handl. iv. no. 7, 

 p. 18 (1876). 



Two examples of this species, recorded originally from the 

 White Nile in Kordofan, were obtained. 



Lamnonyx punctifrons (Newport) . 



Mecistocephalus punctifrons, Newp. P. Z. S. 1842, p. 179 (and of all 

 authors). 



Resembling the well-known Indian form, except that the 

 body, excluding the first and second terga, which with the 

 head and maxillipedes are castaneous, is of a uniform pale 

 yellow colour, and that in the adult the sternal sulci are visible 

 only to about the thirty-sixth segment, and from the thirtieth 

 to the thirty-sixth are merely represented by a very short 

 groove on the hinder border of the plate. This, at least, is the 

 case in two presumably mature specimens measuring 63 and 

 73 millim. respectively in length, whereas in a young speci- 

 men (51 millim.) the sulcus is visible to the end of the boJy, 

 and even on the last segment extends past the middle of the 

 sternite. In this respect this young example resembles the 

 Indian form. 



It is difficult to say without further specimens what the 

 exact value of this character may be. 



MILLIPEDES (DiPLOPODA). 



Archispirostreptus Phillipsii^ sp. n. 

 (PI. XI. figs. 5-5 b.) 



^ . Entirely black, with the anterior covered part of the 

 segments yellowish red, and showing a spot of the same 

 colour above the base of the legs. 



Head nearly smooth, finely punctulate and striolate ; no 

 sulcus joining the inner angle of the eyes ; four pores above 

 the labral excision. Eyes acutely angled internally, sepai'ated 

 by a space which about equals a diameter, composed of 

 thirteen vertical rows of ocelli up to about 70 in number. 

 Antennce long, longer than the face by the two distal seg- 

 ments, the segments decreasing in length from the second to 

 the sixth. 



liirst tergite lightly striolate ; the anterior angle of the 

 inferior portion produced and convex, crossed by three ridges 

 in addition to the one on the very margin. 



13* 



