Hi Chris:
Here are a few Cassid / Tonna bibliographies:
Somewhat listed in an order of useful content.

Kreipl, Kurt  1997
Recent Cassidae, Christa Hemmen Verlag, 151 pp, 24 cpl

Abbott, R. Tucker  1968
Cassidae, Indo-Pacific Mollusca, A Monograph of the Marine Mollusks of the
World Vol 2 # 9, Acad of Nat Sci Phil, 202 pp (00-003~010 & 12-409~716), 187pl

Turner, Ruth D.  1948
Tonnidae: The Family Tonnidae in the Western Atlantic, Johnsonia Vol 2 # 26,
Oct 30, MCZH, pp 165-192, pl 74-85, Jour

Woodring, W. P. & A. A. Olsson  1957
Bathygalea, Genus of Moderatly Deep-Water Miocene to Recent Cassids: A Study in
Morphologic & Adaptive Evolution, Shorter Contrib to General Geology, US
Geological Survey Prof Paper 314-B, USGPO, pp 21-30 pp, pl 7-10, 1 map

Smith, Maxwell  1948
Triton Helmet & Harp Shells: Synonymy, Nomenclature, Range & Illustrations, 57
pp, 16pl

Quinn, James E. Jr  1980
A New Genus, Species & Subspecies of Oocorythidae (Gastropoda: Tonnacea) from
the W. Atlantic, The Nautilus, Vol 94 (4), 30 October, pp 149-158

Parker, John Dyas  1948
A New Cassis & Other Mollusks from the Chipola Formation, Nautilus Vol 61 # 3,
rpt, Jour

Kaicher, Sally Diana  1956
Indo-Pacific Sea Shells: A Guide to the Common Marine Snails from East Africa
to Polynesia - Tonnacea, 16 pp, 6 pl

Leslie
___________________________

Dear all,
Although my collection of the above mentionned family is quite extensive
already, the information on these beauties is scarce.  I'm on the lookout for
copies of publications, both recent as old ones, on both fossil as well as
recent Tonnidae. Of course the specimens, recent as well as fossil, are also
welcome.

Tuns are a taxonomical mess, and I have this idea in my head that I can clear
it out, for that however, I need as many of the old publications I can get a
hold of;

Thanks in advance,
Chris