no DISCOVERY REPORTS 



In the branchial sac only the dorsal fold is present on each side and a second one is represented 

 merely by the closer spacing of some of the longitudinal bars. The arrangement of the bars on one 

 side in a large specimen was : dorsal line 4 (6) 3 (6) 3 endostyle. 



It will be seen from the above table that f. simplex is principally distinguished from the type material 



4.0 cm 



2.0 cm 



- t 



Text-fig. 41. Styela schmitti van Name f. simplex n. (St. 388) : A, B, C, external appearance of three specimens; D, specimen 

 with right side of the body removed, seen from the right ; E, dorsal tubercle of two specimens. 



