in the British Museum. 221 



as wide as long, as wide as the head and the first tergite, its 

 sides lightly convex and a little converging anteriorly. 



Maxillary coxcn long, wider in front than behind, nar- 

 rowed at the antcro-latcral angles, witii complete ehitinous 

 lines, the anterior border lightly concave, without teeth ; 

 pleura' seen from below large ; feet short and stout, not over- 

 lapping the head in front when closed, but overlapping it a 

 little at the sides, all the segments unarmed. 



Tergites twice as long and a little broader than the pre- 

 scuta, marked with two distinct sulci and with a less distinct 

 median sulcus. 



Pleural prescuta large, larger than the tracheal sclerites, 

 which are in contact witii the tergites. 



Sieruites, at least in the anterior third of the body, marked 

 posteriorly with a transversely elongate porous area; the rest 

 marked with a median impression. 



Anal somite. — Ter^ife wide, wider than long, nearly covering 

 the pleurffi, narrowed posteriorly ; pleurce small but not coxi- 

 form, entirely smooth ; sternite wide^ wider than long, its 

 sides strongly converging ; prosternal plates distinct ; legs 

 short, about as long as and a little thicker than the preceding 

 pair, slender (iu $ ), composed of six segments and armed 

 with a claw. 



Number of pairs of legs 59. 



Length 26 millim. 



A single female specimen of this species from King Island, 

 in Bass Striiit (S. Australia), collected and presented to the 

 British Museum by Mr. Arthur Dendy. 



This species cannot be confused with any that have been 

 hitherto described from Australia. It is, in fact, so different 

 from all that perhaps a new genus should be created for its 

 reception. 



[^Geophilus morbosus (Hutton). (PI. XII. figs. 7, 7a.) 



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

 p. 115 (1877). 



Colour ochraceous, with pale castaneous head and maxil- 

 lary somite. 



Body posteriorly attenuate. 



Head much longer than wide, wider in front than behind, 

 sparsely punctured ; frontal plate indistinctly defined. 



Antennce hairy, attenuate, segments narrower at the base, 

 the apical ovate and a little longer than the penultimate. 



Prehasal plate invisible; hasal plate very small, about half 

 the width of the first tergite, its sides strongly converging. 



