I'm writing a biological handbook on invertebrate animals and their remains found on sandy beaches in Central and Northern California. I can cover the local beaches well enough, but if you go to any beaches outside the Bay Area, I'd be grateful for any shells or other animal traces that you might bring back. I'd just need to know the locality and the month of collection for each specimen. I'll take photos and include them in my book. You can have the shells, etc. back if you like. Thanks a million.