Common name	Scientific name	Family	Status	Weight	Countries
Striate lyonsia	Lyonsia norwegica	Lyonsiidae	Not recorded	Not recorded	Not recorded
Scaly lyonsia	Lyonsia bracteata	Lyonsiidae	Not recorded	Not recorded	Not recorded
Glassy lyonsia	Lyonsia hyalina	Lyonsiidae	Not recorded	Not recorded	Not recorded
Sandy lyonsia	Lyonsia arenosa	Lyonsiidae	Not recorded	Not recorded	Not recorded
California lyonsia	Lyonsia californica	Lyonsiidae	Not recorded	Not recorded	Not recorded
Florida lyonsia	Lyonsia floridana	Lyonsiidae	Not recorded	Not recorded	Not recorded
Granulate lyonsia	Lyonsia granulifera	Lyonsiidae	Not recorded	Not recorded	Not recorded
Not recorded	Lyonsia alvarezii	Lyonsiidae	Not recorded	Not recorded	Not recorded
Not recorded	Lyonsia arcaeformis	Lyonsiidae	Not recorded	Not recorded	Not recorded
Not recorded	Lyonsia argentea	Lyonsiidae	Not recorded	Not recorded	Not recorded
Not recorded	Lyonsia baltica	Lyonsiidae	Not recorded	Not recorded	Not recorded
Not recorded	Lyonsia baudoni	Lyonsiidae	Not recorded	Not recorded	Not recorded
Not recorded	Lyonsia celeste	Lyonsiidae	Not recorded	Not recorded	Not recorded
Not recorded	Lyonsia cucumerina	Lyonsiidae	Not recorded	Not recorded	Not recorded
Not recorded	Lyonsia gagarae	Lyonsiidae	Not recorded	Not recorded	Not recorded
Not recorded	Lyonsia heberti	Lyonsiidae	Not recorded	Not recorded	Not recorded
Not recorded	Lyonsia kawamurai	Lyonsiidae	Not recorded	Not recorded	Not recorded
Not recorded	Lyonsia malvinensis	Lyonsiidae	Not recorded	Not recorded	Not recorded
Not recorded	Lyonsia mooreae	Lyonsiidae	Not recorded	Not recorded	Not recorded
Not recorded	Lyonsia morgani	Lyonsiidae	Not recorded	Not recorded	1
Not recorded	Lyonsia nesiotes	Lyonsiidae	Not recorded	Not recorded	Not recorded
Not recorded	Lyonsia nuculanoformis	Lyonsiidae	Not recorded	Not recorded	Not recorded
Not recorded	Lyonsia praetenuis	Lyonsiidae	Not recorded	Not recorded	Not recorded
Not recorded	Lyonsia subplicata	Lyonsiidae	Not recorded	Not recorded	Not recorded
Not recorded	Lyonsia taiwanica	Lyonsiidae	Not recorded	Not recorded	Not recorded
Not recorded	Lyonsia ventricosa	Lyonsiidae	Not recorded	Not recorded	Not recorded
Not recorded	Lyonsia vniroi	Lyonsiidae	Not recorded	Not recorded	Not recorded