in the British Museum. 223 



very narrow, about half the width of the first tergite, not twice 

 as wide as long, its sides strongly converging. 



Maxillary coxce punctured, mesially impressed, the antero- 

 lateral angles squared, without chitinous lines, the anterior mar- 

 gin bidentate ; pleurce, seen from below, very narrow ;^e< long 

 and slender, punctured, largely overlapping the head at the 

 sides and in front, the joint of the claw being on a level with the 

 anterior angles of the head, the femur armed internally with 

 a blunt tooth, the second and third segments armed with a 

 minute tooth, and the claw armed with a conspicuous sharp 

 tooth. 



Tergites bisulcate, wider than the prescuta ; pleural pre- 

 scuta large, free, larger than the tracheal sclerites, which are 

 in contact with the tergites. 



Sternifes w ith a stronger median and two weaker lateral 

 impressions. 



Anal somite. — Tergite triangular, very much narrowed 

 behind, not quite covering the pleurge ; pleurce smooth above, 

 furnished below with about twelve conspicuous larger and 

 smaller pores, the posterior interior edges of the pleurae 

 thickened ; sternite narrow, much longer than wide, its sides 

 strongly converging ; legs longer than the preceding pair, 

 composed of six segments, armed with a claw, a little thicker 

 in the male ; anal pores conspicuous. 



Number of pairs of legs in male and female 39. 



Length up to 31 millira. 



Two specimens ticketed N. Zealand, a third from Maun- 

 gatua presented by Mr. J. Vaughan-Jennings, and a fourth 

 from Wellington [H.M.S. ^Challenger''). 



This species is closely allied to (i. morhosus^ the two having 

 probably been confounded by Hutton. It may, however, be 

 distinguished at once by its conspicuously porous anal pleurge 

 and narrow anal sternite. 



Geojphilus Iluttoni, sp. n. (PI. XII. figs. 9, 9 a and b.) 



Syn. Himantarium ferrugineum, Hutton, Ann. & Mag. Nat. Hist. (4) 

 XX. p. 115 {ferrugiiieus, nom. preocc). 



Colour * {teste Hutton) entirely pale red, antenna3 rather 

 lighter. 



Body robust, slightly attenuated posteriorly. 



Head a little longer than wide, with straight anterior and 

 posterior margins and lightly convex sides j frontal plate 

 indistinctly defined. 



* The colour of the Museum example has been destroyed by exposure 

 to light. 



