in the British Museum. 225 



but in O. poh/porus the maxillipedes project much more 

 beyond the sides of the head. 



Geophilus provocator, sp. n. (PI. XII. figs. 10, 10 a, h.) 

 Colour deep ochraceous ; head and maxillipedes pale casta- 

 neous ; shining. 



Body robust, posteriorly attenuated. 



Head punctured and hairy, a little longer than wide, wider 

 in front than behind ; frontal plate indistinctly defined. 



Antennce of moderate length, thick, attenuate, hairy; 

 segments subcylindrical, the apical ovate and a little longer 

 than the penultimate. 



Prehasal plate invisible ; hasal plate wide, about three times 

 as wide as long, very nearly as wide as the first tergite, its 

 sides strongly converging. 



Maxillary coxm much wider than long, punctured, the 

 antero-lateral angles not narrowed, chitinous lines absent, 

 front border eraarginate, without teeth ; pleurce^ seen from 

 below, moderately large ; feet short and stout, overlapping 

 the head at the sides but not in front, the joint of the claw 

 being some distance behind the anterior angles of the head, 

 the femur armed with a single blunt tooth, the other segments 

 unarmed. 



Tergites bisulcate, punctured, a little wider than the pre- 

 scuta. 



Pleural prescuta large, free, and much larger than the 

 tracheal sclerites, which are in contact witli the tergites. 



Sternites in the anterior half of the body with a conspicu- 

 ous, transversely elongate, porous area in the posterior half, 

 the rest with a median impression, and the posterior end with 

 lateral impressions. 



Anal somite. — Tergite a little longer than wide, its sides 

 slightly converging posteriorly, not nearly covering the 

 pleuree ; pleurce large, but not extending forwards as in G. 

 Uuttoni, conspicuous from above, furnished with about seven 

 pores above and with from ten to twenty below ; sfernite 

 longer than wide, twice as wide in front as behind, its sides 

 strongly converging ; prosternal plates manifest ; legs longer 

 than those of the preceding somite, thick (in male), hairy, 

 composed of six segments and armed with a small claw. 

 Anal pores inconspicuous. 

 Number of pairs of legs 69. 

 Length 59 millim. 



Two male specimens in the collection from Wellington 

 (New Zealand), collected by the officers of H.M.S. ' Glial- 

 lenger.' 

 Ann. & Mag. N. Hist. Ser. 6. Vol. viii. 15 



