Most FASCIOLARIIDAE are quite large, and some of the members grow to the gigantic size of over 60 cm. They are mainly inhabitants of the subtropical and tropical zone and a large part of the family is found in fairly shallow water. Unfortunately their coloration is not very spectacular: most are white, brown or red coloured. Apart from the genus Fusinus, they need a lot of hard cleaning and this, together with determination problems, may be the reason why they are not very much appreciated by collectors. About 300 species.
For a list of genera and species:
http://www.marinespecies.org/aphia.php?p=taxdetails&id=23038