DANFORTH: NEW PTEROPOD. 
15 
which is much lobulated, opens by a wide mouth into the hermaph- 
roditic duct. When in the state of greatest activity this gland partially 
overlaps the first as is shown in text-figure B, ag 1. Like the first it has 
cilia on its inner surface but otherwise its appearance is quite different. 
Text-fig. B. — Horizontal section through the two accessory glands of the 
hermaphroditic duct, ag 1, first accessory gland of herm- 
aphroditic duct; ag2, second accessory gland of hermaph- 
roditic duct; bw, body wall; hd, hermaphroditic duct; mg, 
mouth of first accessory gland of hermaphroditic duct. 
The secreting cells in this case are very much larger and more numer- 
ous with a more reticulated appearance in section. Text-figure B 
from an oblique longitudinal section, shows the general appearance of 
