salpingoecidae salpingoecidae salpingoecidae is a family of choanoflagellates. salpingoecidae salpingoeca sp., in transmission electron microscopy (tem scientific classification domain: eukaryota (unranked): opisthokonta (unranked): holozoa class: choanoflagellatea order: choanoflagellida family: salpingoecidae genera choanoeca diploeca pachysoeca salpingoeca sphaeroeca stelexomonas