(dr. a. C. OÜJiKMANS). NOTKS ON ACAHI. 149 



the leg. All the tarsi end in the tolerably strony claw. Tibia 1 

 is also provided with a tactile hair. 



Hubllat : A bat. 



Patria: Russia. 



29. Key to the genera of Tyroglyphinae. 



Hypopi. 



I Abdomen without sharp edges. '2 

 ^ I Abdomen with sharp-edgetl 



margins, which can be sufflexed 



ventrally (fixation-apparatus) . 6 



Ventral side without any tiace of 

 suckers or claspers : Degener- 

 ated hypopi of Gli/ci/phagus\ 

 never free. ^) 



Ventral side with suckers or 

 claspers; animals free living. 3 



Behind the anus a suckerplate. 4 



Behind the anus two claspers. 5 



All the legs equal in armature 

 and in hairs of tar.si . . . Cerophagus Oudms. ^) 



Legs 4 quite otherwise. . . Trichotarsus Can. 



Under the claspers no sucker. Labidophorus Kramer, 



Under each clasper a peduncul- 

 ated sucker Dermacarus H aller. 



Ventral side without any suc- 

 kers at all Acotyledon Oudms. 



Behind the anus a sucker-plate. 7 



No eyes 8 



Two eyes 13 



1) According to Michael, Britisli Tyroglyphitlae , v.l. p. 168 sqq., 1 Nov 19U1. 

 Arnhem, Januari 1902. A. C. 0. 



2) Tijdschr. d. Ned. Dierk. Vereen., ser. 2, v. Vili, p. XV. -17, IX, 1802. 

 Arnhem, Dec. 1902. A. C. 0. 



