Cirrostomi

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Cirrostomi \Cir`ros"to*mi\, n. pl. [NL., fr. E. cirrus + Gr. ?
     mouth.] (Zool.)
     The lowest group of vertebrates; -- so called from the cirri
     around the mouth; the Leptocardia. See {Amphioxus}.
     [1913 Webster]