Hello Ross,
I think I can help you , for I own a book about these micro's .It is called
Marine prosobranch Gastropods from Oceanic islands off Brazil , written by
Jose H. Leal .Not only endemic sp. are described , but also common shells
from Fernando de Noronha Islands . these commom shell are also occurring on
the mainland of N.E. Brasil .
Another booklet I can recommend is  Coomans en De Jongh , it deals with the
smaller shells of the lesser Antilles , (Aruba , Bonaire and Curacao ) but
some of the shells are also occurring in Brazil .
And last but not least the book from Mr. Rios , but I think you have already
check that one out !
Concerning Marginella's , I can identify some of them . But it is a
difficult job , for there are not many small ones described yet .
Good luck with your research
until later , Jan Neefs




----- Original Message -----
From: Ross Mayhew <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, July 19, 2001 6:50 PM
Subject: Micros and Minis from Brasil - anyone up for IDs?


> I have a friend with some micro and mini-shells from Brazil, but the
> literature seems a bit sparse and scattered.  Does anyone have any
> expertise in this area for the little ones?
>
> From North of the Border,
> Ross.
>