352 



PART II. SYSTEMATIC ACCOUNT 



backward-pointing tentacles had to be removed to expose the mesosoma 

 (Fig. В144у4) and this procedure slightly damaged the anterior part of the 

 specimen, so that it is difficult to decide how the bases of the tentacles were 

 arranged. In this specimen it is not possible to see any pinnules on the ten- 

 tacles, but many pogonophores have them and they may be found in other 

 specimens. 



>-g.2 



Fig. B144. Heptabrachia talbotin. sp. A - anterior end, tentaculate side, after removal of tentacles; 

 В - anterior end, before removal of tentacles ; C- anterior end, non-tentaculate side ; D- girdle region 

 of metasoma ; E - adhesive plate ; F,G- side and surface views of girdle platelet. Diagonal hatching 

 indicates damaged surfaces. 



b - bridle; cl- cephalic lobe; g - first girdle; g. 2 - second girdle; gr. 1 - groove between proto- and 

 mesosoma ; gr. 2 - groove between meso- and metasoma ; me s - mesosoma ; p - papilla ; t - tentacle 

 (After Southward, 1961b). 



