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SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. 1 10 



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fc O Mth 



Fig. 24. — Acarina-Oribatoidea, Holothyroidea, Gamasides. 



A, Eucctcs scnwuihim (O. F. Miiller), Oribatoidea, longitudinal section of 

 capitulum (from Berlese, 1897). B, Holofhyrus bran^ri Thon, HolothjToidea, 

 longitudinal section of capitulum and anterior end of body (from Thon, 1906). 

 C, Poecilochirus carabi Cn., Gamasides, diagrammatic representation from 

 sagittal section of capitulum of male nymph by Winkler (1886). D, Holothyrus 

 braucrl Thon, Holothyroidea, capitulum, with palps and chelicerae (from Thon, 

 1906). E, same, cross section of anterior part of capitulum (from Thon, 1906). 

 F, same, cross section of posterior part of capitulum (from Thon, 1906). 



