393.] OVERSIGT OVER NORGES ASCIDIAE SIMPLICES. 103 



idostyle, with its blind sack, runs somewhat inside the ring 

 irrow, which, on each side of the endostyle, makes a backward 

 end. The stomach short, surrounded by gland organs, gra- 

 nally goes over into the gut, which forms a low twist (fig. 38). 

 he anus has a somewhat lipped, and partially berit-down 

 Ige, and is attached to the branchial sack (fig. 39). As 

 sual, there is a tolerably large hermaphrodical genital organ, 

 i each side; the left, over the gut twist. 



