36G BRITISH ORIBATID^. 



pseudo-stigmatic organs rather short, with slender 

 peduncles extending only slightly beyond the pseudo- 

 stigmata, and rather long fusiform heads, which form 

 a slight angle with the peduncles. Interlamellar 

 hairs absent or rudimentary. First tectopedia mere 

 ridges, second tectopedia curved blades well developed. 

 Lateral opisthophragmatic processes well marked, no 

 central process. Apodemata joined to the sternum. 



Legs rather short, the hind pair only slightly passing 

 the posterior margin. Femora very broad, thin, and 

 rounded, with large blades. Tibise much enlarged 

 towards their distal ends, which are considerably 

 larger than the proximal ends of the tarsi ; there are a 

 few fine hairs on each joint. Claws monodactyle. 



Abdomen a very short ellipse, almost globular, 

 progaster slightly truncated; at each antero-lateral 

 angle of the notogaster, immediately behind the pseudo- 

 stigma, is a blade-like projection with an undulated 

 lateral, and a square posterior edge. There are a few 

 short fine hairs round the posterior margins. Genital 

 and anal plates rather large, roundish, and near toge- 

 ther. 



Distribution. — I have found the species chiefly in 

 moss on trees at Epping Forest; it is not common. 



JSToTASPis SETiRATA,* Michael. Plate XXIX, figs. 1—10. 



Notaspis serrata, Michael. Journ. Roy. Microsc. Soc, ser. ii, 



vol. V, p. 389. 



Average length about '56 mm. 

 Average breadth about '37 mm. 

 Average length of first pair of legs about '30 mm. 

 Average length of second and third pairs of legs 

 about '28 mm. 



Average length of fourth pair of legs about "34 mm. 



A medium-sized species, chiefly characterised by 



* Serratus, serrated. 



