Fig. 2. Lambellisabella zachsi, viewed from the ventral side. 



an - girdles (annuli) ; ct - tentacles ; f - bridle (frenulum) ; tnts - metasoma ; pa - papillae ; 

 pan - post annular region of metasoma ; pran - preannular region of metasoma ; ps + ms - the fore- 

 part of the body, formed from the fusion of the protosoma and mesosoma ; ram - the nonmetameric 

 region of the metasoma ; rm - the metameric region of the metasoma ; rpa - transverse rows of 

 adhesive papillae; sv - ventral sulcus of the metameric region of the metasoma. (After Ivanov, 1952). 



