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