This site will be taken down March 31st, 2026.

This was not an easy decision to make. For the last couple years, I have been struggling to find motivation for this site and to keep up with basic maintenance and security updates. With the rise of AI and more sophisticated tools, the usefulness of sites like this is questionable and traffic has nose-dived. I just don't have it in me to keep doing this. Thank you all for 10 years of support!

Zach

Word

えら
gills; branchia
Word

顎門

顎、鰓、腮
あぎと
chin; jaw; gills; branchia
Word

弁鰓類

べんさいるい
lamellibranches (i.e. bivalves)
Word

異鰓類

いさいるい
Heterobranchia; clade of snails and slugs
Word

鰓弁

さいべん
gill lamella; branchial lamella; gill filament
Word

鰓孔

えらあな、さいこう
gill slit; pharyngeal slit
Word

鰓呼吸

えら呼吸
えらこきゅう
branchial respiration (breathing using gills)
Word

鰓弓

さいきゅう
branchial arch; gill arch
Word

鰓蓋

えらぶた、さいがい
gill cover; operculum
Word

裸鰓類

らさいるい
nudibranchs