See text The subfamily Ovulinae, common name the ovulines, is a highly specialized, extant group of sea snails in the family Ovulidae.

Ovulinae typically have either an ovate (egg-shaped), lanceolate (lance-shaped) or pyriform (pear-shaped) shell.

In these cases, the ovuline species in question has almost always evolved a size, shape, and color that mimics the appearance of the cnidarians and camouflages itself with it.

[3] Species within the family Ovulidae have been reclassified numerous times throughout the 19th, 20th, and 21st centuries, and this has also affected the classification of the subfamily Ovulinae (Shilder 1932, Allan 1956, Cate 1973, Fehse 2001).

At least one researcher suggests that there is still much work to be done is properly categorizing the taxonomy of the Ovulids in general, and the Ovulines in particular.