pixiv Encyclopedia has updated the Privacy Policy as of May 28, 2024. Revision history
Deuterostomes (後口動物, koukoudoubutsu) are one of the large groups of animals in the animal kingdom. Echinoderms and chordates belong to this group.
The protostome opening of the embryo is the anus and the opposite opening is the mouth.
The body structure is characterized by the order of digestive organs, circulatory organs, and nervous system from the ventral side.
0/3000
About issues in articles
If you find something off in an article, please go ahead and edit it yourself.
If you see that someone else keeps doing illicit activities, please go to their profile and report them via the Report a problem button.
Reported successfully
We're collecting feedback to make pixiv Encyclopedia even better. If you have any comments or if you found any problems, please contact us.
Please note that we do not reply to Feedbacks. If you need help, please visit our Help Center.
Please do not include any personal information
Your feedback was sent successfully.
If you notice anything else, please send us your Feedback at any time.
