112 



Ann"als of the Teansvaal Museum. 



rostrum to the caudal extremity of the prolongation) 3.9 mm. to 1.3 mm. ; 

 width 1.9 mm. to 2.3 nmi. bmeid { \ il, h) a little convex^ narrow^ dark 

 brown^ brilliant^ not covering all the dorsal surface^ leaving free a narrow 

 margin on each side, wliich is finely striated, and is prolonged behind the 

 regularly rounded border of the shield, by the caudal appendix ; in front 

 a deep emargination to receive the contraction of the rostrum ; a few 

 very short hairs behind the surface corresponding to a female shield ; 

 punctuations very rare, small, unequal ; cervical grooves superficial, 

 reaching almost to the anterior third of tlie length of the shield ; no 

 marginal groove and no posterior festoons ; three posterior longitudinal 

 grooves, the median one a little shorter than the other two, which 

 extend almost half the length of the shield ; eyes very small, depressed, 

 scarcely visible, marginal, behind the emergence of legs I ; marginal 

 Ijorder clothed, especially in the posterior half, with long hairs joined Ijy 

 .six to ten into transverse bands ; caudal appendage bearing on each side, 

 at its base, a liemisplierical projection, and clothed with a bunch of long 

 hairs, behind and on each side a loose dorsal bunch of hairs, 

 which join a ventral and longitudinal band of hairs, the two ventral 

 bands unite in front of another sul)-caudal appendage, which is chitinous, 

 Wackish, blunt and twice as long as wide. Ventral surface {VII, a) 

 reddish brown, almost flat, witli punctuations shallow, scattered, clothed 

 wn'th short hairs. Genital pore covered with a retrograde valve, situated 

 opposite the lirst inter-coxal space ; anus at the anterior summit of a 

 ■deep, median fossa, limited on each side, by an adanal shield, in the form 

 of a sharp spine, long, chitinous, free in its whole extent ; the two spines 

 rinite on the median line at the anterior edge of the anu-, forming thus 

 a fork with two teeth, which is prolonged in front by an irregular, 

 smooth |)late to the level of the last inter-coxal space ; stigmatic plates 

 short, oA'al, edges brownish, stigmatic orifice nearly central, the whitish 

 background is formed of numerous granulations hemispherical and shining. 

 Rostrum {VII, c), with dorsal base, wider than long, without lateral projec- 

 tions, wider in front than behind, the posterior angles indicated by two 

 small conical ])rojections ; mandibles {VII, d) with inner apophysis conical, 

 sub-terminal, transverse, Avith base large, tip bifid ; outer apophysis with 

 two teeth, the terminal one small : hypostome wide, a little longer than 

 the palpi with eight rows of six to seven teeth, preceded by a surface 

 covered with very numerous and very small denticles ; palpi very short, 

 thick, the first article only visible on the yentral surface, in the form of 

 a transverse band, the second at least as wide as long, rounded on the 

 exterior, wider on the dorsal face, narrower at its base, provided Avith 

 hairs on its external dorsal edge ; the third almost twice as wide as long, 

 forming exteriorly toward the middle of its exterior border a short point ; 

 the fourth small, short, cylindro-conical, sub-terminal. Legs strong, 

 thick, increasing from the first to the fourth, coxae contiguous, sub- 

 triangular ; coxae I, II, and III provided Avith a very small spine near 

 the internal angle of coxae I ; tarsi sub-conical, similar, increasing a little 

 from I to ly, a false articulation, distal in I, proximal in II, III, and IV ; 

 a strong terminal spur, long, preceded by a s])ine on the ventral side, and 

 bearing at its base, on the dorsal border, an ambulacre Avith a disc as 

 long as the spur, and terminated by two Aveak claAvs ; all the articles very 

 chitinous, dark broAvn on their distal and ventral border ; Avith the 

 fourth pair the second article is sub-cylindrical, the third strongh^ 

 dilated exteriorly, is thus rendered rectangular, Avider than lono-, flattened 



