0.1мм 



Fig. ММ133. Siboglinum ceylonicum: A - fore-part of the body from the dorsal, and B, from the 

 ventral side ; С - part of the tentacle ; D - part of the metameric region of the trunk from the 

 ventral side ; E - cuticular plaques from the metameric region. 



act - pretentacular glandular girdle ; с - cephalic lobe ; со - dorsal ciliated band ;/- bridle ; go - male 

 genital papilla ; gt - flask-shaped glands ; ms - mesosoma ; mts - metasoma ; p - plaque ; pa - papillae ; 

 pi - pinnules ; ps - protosoma ; $ 2 - groove between the mesosoma and metasoma ; s 3 - pretentacular 

 groove; sv -ventral sulcus; /-tentacle; vd- dorsal blood vessel; vv- ventral blood vessel seen 

 through the body wall. 



