> Vink also
> notes that the burryae form has straighter sides.  He treats it as a
> subspecies of C. floridanus.  Seems most specimens from the Keys are
> labeled
> as this form, but I have seen very few specimens that actually match
> the
> type in form and pattern.  Study of a large enough series of shells
> from the
> Keys may show this form intergrades with the other forms of this
> species.

C. f. burryae is a forum of C. floridanus.  I have found ones that look
like the holotype together with C. floridanus and intergrades.


> Other forms you may encounter on labels are C. floridanus tranthami
> (a small
> pale form from the upper Florida Keys/ Pickles Reef which I would
> like to
> learn more about.)

That is a rare shell and I have never found any.  It is supposed to have
a different colored animal.

Andrew