3 (2) Introvert with two pair of retractor muscles (dorsal and ventral, Fig. IB); 5-25 mm (Fig. 4) . . . 



Golfingia margaritacea 



lmm 



4 



3 (2) Introvert with one pair of retractor muscles (ventral only) 4 



4 (3) Trunk smooth; well-developed tentacles as in G. margaritacea; mature forms are stout with 



thick body walls; free-living; 5-25 mm (Fig. 5) Golfingia eremita 



5 



4 (3) Posterior of trunk may have papillae; tentacles reduced to lobes (Fig. 6A); small (2-10 mm) and 

 slender with thin body walls (Fig. 6B); sometimes found in hyalinaceous polychaete or arena- 

 ceous foraminiferan tubes Golfingia minuta 



6A 



