64 A. e. ÜÜDEMANS, NOTKS ON ACARI. 



I With démarcation between céphalothorax and abdomen 3 



2 I ' 



Without such ,15 



3, 



6. 



d" without anal suckers 4 



d* with anal suckers 6 



(£ without genital suckers . . .1, N^anacariis Oudms 

 2 with genital suckers 5 



Ambulacra with caruncle and claw 



2. Dermolichus (A L. Koch. 

 x\mbulacra with claw only . . 3. Saprofjlyphi« Beri. 



Without sternum 4. Mealia Trt. 



With sternum 7 



I d" posterior margin of abdomen without projecting blade 8 

 ( d" posterior margin of abdomen with a projecting blade 14 



[ d" Legs I normal 9 



8. d" Legs I much thicker than the other legs : its 



' femur spurred 13 



/ Ambulacra with claw and caruncle 10 



9. I Ambulacra with claw only 11 



' Ambulacra with caruncle only .12 



I Caruncle much smaller than claw 5 Turoalyphus Latr. 



( Caruncle and claw equal in length 6 Canestrinia Beri. 



11. One genus onl}^ 7 Hypopus Duj. 



12. One genus only 8 Fhotia Oudms. 



13. One genus only 9 Aleurohius Can. 



14. One genus only 10 Histioyaster Beri. 



I Mouth organs discernible from the dorsal aspect . 16 



15. ° . ^ 



I Mouth organs hidden by dorsal hood 18 



d" epimera II not joined to sternum 11 Trie hotar sus Van. 

 d" epimera II joined to sternum ....... 17 



No genital suckers in either sex. . 12 Hericia (Jan. 

 Genital suckers in both sexes . 13 Carpoglyphus Robin 



16. 



1' 



