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surrounding the mouth in this way together with the latter. Along 
the inner side of each lobe there are placed two rows of teeth 
(fig. 8 i). More to the outward along the lateral margins of the 
mouth there are placed two other rows of which the exterior con- 
sists of about fifteen compressed teeth, united at their base; this 
row is directed obliquely backwards. 
The maxillåe bear in front two pair of organs: 
1. The sides of the maxillae are terminated with an organ on 
each side, most similar to Winkler's ,,Lobi externi der Maxillen" in 
the Gamasidae or Michael's ,,Maxillae" in the Oribatidae. These 
mazillary lobes (pl. IV fig. 3, 4, 5 & 7 m) are articulated on each 
side of the labrum and are compressed, almost massive organs, 
slightly bent outwårds. Their upper margin is curved a little 
downwards, and their tips form a little hook; the lower margin is 
provided with four teeth, one behind the other, and the last is 
much the largest. 
2. Just below their base a very remarkable perpendicular 
thin plate is placed, fastened with a narrow stalk (pl. IV fig. 4 & 
6 p and fig. 7). The front margin of this pentagonal plate is directed 
obliquely downwards and backwards and curled outwards, so that 
this margin seems very thick (fig. 7 f). The posterior and upper 
margin is curved backwards and provided with hair-like branches, 
four larger ones behind and many smaller ones in front. More or 
less parallel with the posterior margin some thickened lines (fig. 7, 1) 
are developed, at first sight giving the appearance to the hindmost, 
upper part of the plate of being only a hair. From the base to 
the middle of the plate and from the middle to the lower margin 
other thickened lines are developed (fig. 7, 2 & 3), so that the lower 
proximal part is sometimes similar to å separate plate. 
More inwardly and downwardly there is placed a chitinous thorn, 
sharp and much like the edge of a knife (fg. 7 5). 
