Omitting the authors and/or dates is very common. Biologists and palaeontologists are more particular, but i can't imagine archaeologists complaining too much about this! Nevertheless, the ideal way of listing a species is with the original authors and date of first description. (Taxonomic changes don't alter the original authors, they just go in brackets). The author(s) should only be included at first mention anyway. But if there are several species in the title of a paper, it's unwieldy to do so. The best way to present all this is in a table of species. Anyway, short of going to the NHM for what you need, most UK and European animal and plant atlases include the authors/date in each species section. Have you tried getting hold of the relevent ones for Britain? Good luck. Chris Gleed-Owen This E-mail and any files transmitted with it are private and intended solely for the use of the individual or entity to whom they are addressed. If you are not the intended recipient, the E-mail and any files have been transmitted to you in error and any copying, distribution or other use of the information contained in them is strictly prohibited. Nothing in this E-mail message amounts to a contractual or other legal commitment on the part of English Nature unless confirmed by a signed communication. English Nature will make every effort to keep its network free of viruses. However, the recipient of this message will need to check this message, and any attachments, for viruses, as English Nature can take no responsibility for any computer virus that might be transferred by this e-mail. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%