432 BRITISH ORIBATIDJ;. 



tracum itself is often partially lost. The creature 

 generally carries more or less dirt. 



Cephalothorax distinctly divided into three divisions 

 by transverse furrows or constrictions. The anterior 

 division is considerably the narrowest ; it forms the 

 rostrum, and is conical with a rounded apex ; but the 

 lower edge (epistome) of the antero-lateral portion 

 slightly projects. There are a pair of small, curved, 

 rostral hairs, and a considerably larger pair on the 

 dorsal surface of the rostrum. The central division 

 has a somewhat projecting and considerably raised 

 chitinous boss on each side, to the outer edge of which 

 the first leg is articulated. There is a curved ridge 

 near the inner side of each boss, and nearer the median 

 line are two straight ridges which almost touch ante- 

 riorly but are widely separated posteriorly; they enclose 

 a triangular depressed space which has an indication 

 of a carination in the median line. The posterior 

 division has a similar triangular median depression 

 bordered by ridges but without any carination. The 

 pseudo-stigmata are placed near the anterior margin 

 of this division on the tops of mammilliform elevations ; 

 they are very projecting, with open trumpet-shaped 

 mouths and are strongly ridged inside; if dissected 

 out they are seen to be cornucopia-shaped. Pseudo- 

 stigmatic organs filiform^ rather long. Interlamellar 

 hairs filiform, curved or straight, varying in length, set 

 close to the inner anterior edges of the projections 

 which carry the pseudo-stigmata ; there is a much 

 smaller hair outside the pseudo-stigma. At each side 

 of this division, between the first and second leg, is a 

 strong chitinous projection which has a blunt-pointed, 

 tooth-like anterior, and a rounded posterior lobe. The 

 second leg is articulated immediately behind this pro- 

 jection. 



Legs long but not so long in proportion as in some 

 other species ; they are rather thick for the genus. 

 Coxae of the two hind pairs of legs large, and each has 

 a sort of projecting blade on the posterior lower edge. 



