326 University of California Publications. [ ZooLocy 
8:45 a.m. Removed terminal bud, 15, 14, and 13. 
August 7, 9:45 a.m. Nos. 13 and 14 have regenerated, each 
with a single annulus in the pedicel. 
August 8, 2 p.m. Stem segment with bud of 15 has ap- 
peared; single annulus below hydrotheca. 
Result: all the regenerated parts accord with the structural 
type characteristic of the distal region (fig. 2). 
IV.—August 5, No. 5. Stem with 17 hydranths. 
Pedicel 1 with 8 annuli 
Pedicel 2 with 6 annuli 
Pedicel 3 with 4 annuli 
Pedicel 4 with 3 annuli 3 
Pedicel 5 with 2 annuli 
Pedicel 6 with 4 annuli 
Pedicel 7 with 3 annuli 
Pedicels 8-9 with 2 annuli 
Pedicels 10-11 with 3 annuli 
Pedicels 12-15 with 2 annuli 
Pedicel 16 with 1 annulus 
Pedicel 17 with 0 annuli 
8:50 a.m. Removed 17 and 16. 
August 11. No. 16 has regenerated. Pedicel with 1 (pos- 
sibly 2) annulus and 16-18 tentacles. 
Result: this stem was somewhat irregular with regard to the 
number of annuli in successive pedicels. The regenerated ped- 
icel, however, corresponds with the local structural type. 
V.—August 5. No. 6. Stem with 13 hydranths and terminal 
bud. 
Pedicel 1 with 6 annuli 
Pedicel 2 with 4 annuli 
Pedicel 3 with 5 annuli 
Pedicel 4 with 4 annuli 
Pedicel 5 with 3 annuli 
Pedicel 6 with 4 annuli 
Pedicel 7 with 3 annuli 
Pedicel 8 with 1 annulus 
Pedicel 9 with 3 annuli 
Pedicel 10 with 2 annuli 
Pedicels 11-14 with 1 annulus 
8:55 a.m. Removed terminal bud, 13 and 12. 
