Table 3 

 Characteristics of the species of Heptabrachia 



H. abyssicola 



H. gracilis 



H. beringemis 



H. celebensis H. ctenopho 



Ratio of lengths of protosoma + 



cephalic lobe to mesosoma 

 Number of tentacles 

 Secondary mesosomal grooves 

 Fusion or contact of keels 



Number of pairs of metameric papillae 

 Shape of cuticular plaques 

 Diameter of cuticular plaques (ц) : 



from metameric papillae 



from nonmetameric papillae 



from thickened papillae 

 Arrangement of papillae in zone of 



thickening 

 Number of papillae in zone of 



thickening 

 Length of toothed platelets (jj) 

 Number of papillae per transverse row 



in postannular region 

 Length of body (excluding tentacles) 



(mm) 

 Breadth of body (mm) 

 Length of spermatophores (mm) 

 Diameter of tube (mm) 



