Crowntail
The crowntail is the result of selective breeding of the combtail by taiwan breeders.
This crowntail picture was donated by Aussie_dog.
Veiltail
The veiltail was the first long fin betta type and if you cross any other fin type with a veiltail you'll get all veiltail.
This veiltail picture was donated by Tazwell.
Delta Tail
This picture was donated by Zafirah.
Super delta tail
The Super Dalta or SD is almost a halfmoon but it only has a 170 degree span.
This SD picture was donated by Alesia.
Halfmoon
The halfmoon or HM is so called from it's 180 tail span, If the span of the tail is under 180 it is called a Super Dalta.
Picture donated by Errin.
Halfmoon Double Tail
The Halfmoon Double Tail came about from a cross between a HM and A DT.
This picture was donated by Rogue Shadow.