TERM: Description of glossary term.
head gland
A special adhesive organ found on the head of larvae in some fish species (e.g. in Pterophyllum) which allows them to remain attached in the spawning cave/substrate.
TERM: Description of glossary term.
A special adhesive organ found on the head of larvae in some fish species (e.g. in Pterophyllum) which allows them to remain attached in the spawning cave/substrate.