These are life forms whose basic biochemistry is not specified.
SEE ALSO - Nonconventional Lifeforms
“The Yalosians are a sapient extraterrestrial species which breathes an atmosphere composed of...Yalosian
“The unnamed sapient species belonging to physiological classification QCQL are a recent yet very...QCQL
“Threcaldians (physiological classification TLTU) are a spacefaring extraterrestrial thermophilic...Threcaldian