actæonid (akteonid)

A gastropod of the family Actœonida. Actæonidæ (ak-te-on'i-dē), n. pl. [NL., lingual teeth, which are numerous, nearly uniform, and arranged in series diverging from the middle; and a sub cylindrical spiral shell having a columellar fold. The liv ing species are of small size, marine, and chiefly tropical or subtropical, and have been distributed among several Numerous fo il species have been found. The family is also known under the name To rna tel lidæ (which genera. IMG:content-0220.png:[blocks in formation] nella (not used) + -idæ.] A family of acantho anemones or animal-flowers proper, regarded as a family, having as type the genus Actinia, and belonging to the order Helianthoida or Mala coder mat a, of the cla Actinozoa. It contains numerous genera and species. See Acti nozoa. Also written Actinida.