POLYBRACHIA BARBATA 



399 



Fig. 159. Polybrachia barbata: A - front end of a male from the right side; В - the same in ventral 

 view; С - cuticular plaques. 



b - secondary mesosomal rings; с - cephalic lobe; /-keel of the bridle; go - genital papilla; 

 ms - mesosoma ; mts - metasoma ; p - cuticular plaques ; pa - papillae ; ps - protosoma ; r - groove 

 between the protosoma and the mesosoma; s 2 - groove between the mesosoma and the metasoma; 

 s 3 - pretentacular groove; sv - ventral sulcus; tc - tentacular crown. (After Ivanov, 1952.) 



