134 Mr. R. I. Pocock on the 



Legs long'er than in 7. tristani. 



^ . Smaller and thinner than female. The first pair of 

 legs small and hook-like, the second pair with simple coxje ; 

 mandible angularly produced. 



Number of segments 33-34. 



Length up to about 10 millim. 



Loc. Tristan d'Acunha (Inaccessible Island and Tristan 

 Island). 



lulomorpha Porathi, sp. n. 



Colour black, with two Havous or testaceous spots on the 

 dorsal area of the segments, constituting two parallel flavous 

 bands ; anal tergite black and polished, anal valves, legs, and 

 antennjB testaceous; head fusco-ferruginous, with a deeper 

 fascia between the eyes. 



Head smooth, with weak frontal sulcus and a fine stria 

 between the eyes ; labral pores 4 + 4. Eyes widely separated, 

 small and triangular, composed of about three transverse 

 rows of ocelli. Antennce longish, reaching past the second 

 segment. 



Collum laterally elongate, triangular, with a marginal 

 sulcus and two longitudinal sulci, smooth above. The rest of 

 the segments without trace of a transverse sulcus, merely 

 marked by a shallow transverse groove, the area behind this 

 groove smooth above, inferiorly finely ridged longitudinally, 

 the covered area of the anterior portion closely and finely 

 transversely striate in front. Tiie pores large, above the 

 middle of the side at some little distance behind the trans- 

 verse groove. Sterna finely striolate. 



Anal tergite covering but not surpassing the valves; valves 

 convex, not compressed and not marginate. 



Sternum obtusely rounded. 



Legs sparsely setose beneath. 



Number of segments 47. 



Length about 36 millim., width 2*5. 



Loc. Malamaui (Philippine Islands). Two female ex- 

 amples. 



1 take great pleasure in dedicating this striking species, 

 the second known of the genus, to Dr. C. O. von Porath, who 

 was almost the first zoologist to describe exotic Myriopoda 

 with accuracy. 



This new form /. Porathi agrees tolerably closely with the 

 South-African /. Kinhergi in most of its structural features. 

 It may at once be recognized, however, by its marked colouring 

 and smaller number of segments. 



The second example, measuring only about 12 millim., with 



