The Collaborative International Dictionary
Tornariae
Tornaria \Tor*na"ri*a\, n.; pl. Tornari[ae] . [NL., fr. L. tornare to turn.] (Zo["o]l.) The peculiar free swimming larva of Balanoglossus. See Illust. in Append.
Wiktionary
tornariae
n. (plural of tornaria English)