ORIBATOIDEA SINENSIS I 119 



Division 6. Head and thorax grown together with rest 

 of body. 



Subdivision 2. Without visible antennae (feelers), 

 e. All feet with 3-partite claws. 

 57. Genus, Galumna nob. 

 Type, Notaspis alatus Herm. 



Even a cursory consideration of the descriptions and 

 figures of Oribata geniculata (Linne) and Notaspis alatvs 

 Herm, shows that the former belongs to the genus later 

 called Damaeus by Koch, Nicolet and Michael, while the 

 latter is unmistakably a member of that group for which 

 Oudemans uses the generic name Galumna (id est seDSU 

 restricto) . 



The following species of this genus were collected during 

 the summer of 1921 at a former temple grounds (Ch'ao Yang 

 An) situated at the edge of the hills southwest of Peking. 

 The species have been arranged in alphabetical order. Under 

 measurements, the minimum, the average (in parentheses) 

 and the maximum dimensions are given. All measurements 

 are in microus unless otherwise indicated. 



Galumna altera Oudms. 1915. 



Seven specimens of this species were taken on Sep- 

 tember 17th from the under surface of stones in the small, 

 sheltered fields of the temple grounds. 



They are identical to those described and figured by 

 Oudemans in his article " Notizen uber Acari, 26 Reihe ' 

 which was published in 1919 in the " Archiv fur Naturges- 

 chichte " 83. Jahrgang 1917, Abteilung A, Heft 4, pp. 1-84, 

 except that the total length averages 510 and the length of 

 the notogaster averages 425. This dwarfing may be due to 

 the stringent biological conditions of northeast China. For 

 a group of animals accustomed to feed on the vegetable 

 mould of a forest floor and in the midst of moisture, the 

 species of this region find themselves in a semi-arid environ- 

 ment until mid-June or July and one utterly lacking in 

 vegetable mould of any kind. 



Oudemans material is from " San Kemo," northwestern 



Italy. 



Galumna lanceatus Oudms. 1900. 



Under this name are temporarily referred five specimens 

 taken on the same date as the above from the under surface 

 of stones lying in a shaded ravine, also a single specimen 



