Ranellidae

Gray, 1854

Shell small to extremely large, thick and solid, varied in shape but generally resembling muricacean neogastropods in most features except that there are only two varices per whorl, rather than three or more; last whorl of most genera relatively small, siphonal canal short to long, spire short to tall; sculpture of most genera of prominent spiral and axial cords and nodules. Outer lip prominently variced in all genera, varices remaining at preadult growth pauses in almost all genera.
Periostracum prominent, bearing numerous short to long bristles in most genera.
Operculum always present, with central, adaxial, subcentral, or abapically terminal nucleus.

[Beu, 1981. pp 252]

Cymatiinae

Iredale, 1913 (1854)

Protoconch tall and narrowly conical in almost all genera; periostracum bearing luxuriantly bristled, prominent, thin axial blades.
These are the Ranellidae of the tropics, and all have long planktonic larval lives.

[Beau, 1981, pp252]

Charonia

Gistel, 1847
Charonia lampas

Cymatium

Röding, 1798
Cymatium lotorium

Gutturnium

Mörch, 1852 /h6>

Gutturnium muricinum

Ranularia

Schumacher, 1817
Ranularia sinensis
Ranularia caudata

Monoplex

Perry, 1810
Monoplex parthenopeus

Turritriton

Dall, 1904 /h6>

Turritriton labiosus

Ranellinae

Gray, 1854

Protoconch low and turbinate; periostracum smooth, furry or with large, evenly spaced bristles, lacking axial blades.
These are the Cymatiidae of western America, Europe and, above all, the Southern Ocean, with few Indo-West Pacific or Carribbean species

[Beau, 1981, pp252]