(OUDEMANS AND KOENIKe) ACAKI. 239 



bright red, varied with black on the back (food-particles in the 

 intestine), which gives to some specimens a purplish hue. 



Tromhidium laevicapillatum Kramer. — My specimen was a 

 female , measured 2,6 millimeters and contained 24 ellipsoidical 

 immature eggs, from 0.14 to 0,25 millimeters in length. Kramer 

 says the hairs on the back are smooth. I cannot contradict this, 

 and yet 1 believe they are feathered , as are the hairs on the 

 animal's side, which are distinctly feathered on one side. The 

 hairs of the body stand in conical protuberances of the skin. Con- 

 trary to Kramer I find all the hairs of the extremities feathered 

 on one side, no smooth ones, but this must be observed with 

 excentrical light. The last article of the fore-legs is not particularly 

 swollen, and bears the characteristical backward-curved (tactile?) 

 hairs as in the following species. The claws are hollow, most 

 probably therefore a nerv ends in them and have they a tactile 

 function. Colour brownisch red. In my specimen , preserved in 

 spirits , all the hairs are colourless. 



Tfomhidiuni arniatum Kramer. — Contrary to the description 

 of Kramer (Vega-Expeditionens Vetenskapliga Arbeten,III, p. 521): 

 « Auf die Gliedmassen sind die Borsten in der Regel glatt oder 

 nur an der Spitze oder hier und da einseitig gefiedert » , I see 

 all the hairs of the extremities hairy ; most of them are feathered 

 on one side, no one was perfectly smooth; but these hairs are 

 nearly colourless (at least in my specimen , preserved in spirits) 

 so that only after inspecting the animal by higher powers (250 

 to 680 diameters) the feathering of the hairs was unquestionable. 

 I have observed the smooth hairs , however , on the last swollen 

 article of the first pair of legs , just as Kramer describes them. 

 The hairs of the body stand in short cylindrical protuberances of 

 the skin. Kramer does not say anything of the animal's colour. 

 The body and the legs are yellow, the hairs on the legs colourless, 

 and those of the body purplish-red, which gives to the creature 

 its purple colour. My specimen was a female; one egg, probably 

 mature, ovoid in form, turned with its top towards the genital 

 aperture, measured 0,.'} millimeter in length. 



