Initial letter:
A
B
C
D
E & F
G
H
I & J
K
L
M
N & O
P
Q & R
S
T & U
V & W
X, Y (Ü), Z, Å , Ä (Æ) & Ö (Ø)
Expeditions
Music
Biographical refs (short list)

Portraits of several naturalists

Other biographical & etymological links:
Online Etymology Dictionary
2400 years of Malacology (most complete list of malacologists)
Annelida Biographies & Obituaries
Antarctic Expeditions
Botanical collectors
Australian Scientists (many entries)
Biographical Dict. of Biologists
Distinguished Women of Past and Present
Eric's Treasure Trove of Scientific Biographies
Famous Biologists
Internet Resource Guide f. Zoology
New England Naturalists: a Bio-Biblography
Nova Supplementa Entomologica 12 (11) 1998 (many life spans & shortened author names)
Tom Meijer's European Malacologists (very good, with refs to published biographies)
New General Catalog of Old Books and Authors (including > 64 000 authors)
Approved List of Bacterial names
Autor names
Entomological authors (including life span and name abbreviations)
Tom Eichhorst's mollusk links (including many taxon names)
Mexican taxonomists (modern)
Lives (biographical link site to many resources)
Mike Grayson: A zoological 'Who was who'
Women in Science
Ocean Scientists
Bird name authors
Lichen collectors
Antarctic explorers
Australian carcinologists
Today in Science History
Correspondents of Linnnaeus
Brief list of Important Female Figures
Fellows of the Royal Society of Edinburgh
World Diptera Systematics Homepage
Birds of the World (see its Author Index)
American Scientific Exploration 1803-60
Collectors of insects and arachnids in Africa
Biographical notes about persons essential to Linnaeus
Biographies of persons honoured in herpetological names
Biographical Notes on Southern African Botanical Epithets Based on Personal Names
New General Catalog of Old Books & Authors
Institute Pasteur - notes biographiques
History of hypogean ichthyology
Biographies of Mathematicians
Museum collection managers
Dictionnaire de malacologie
Darwin correspondents
Persons mentioned by A.R. Wallace
History of Astronomy
British coleoperists
Tanaidacea Scholars
Some botanical authors
California plant names
Discoverer's web
Eponyms

Biographical dictionaries:
Major
World Biographical Index (ca 2,400,000)
The Biographical Dictionary (>28,000)
Famous Americans (until 1899) (>30,000)
Dictionary of New Zealand Biography (>3000)
Svenskt biografiskt handlexikon (2:nd ed., 1906)
Minor
Biography Center (ca 11,000)
Biography.com (ca 25,000)
Great Books Five Stars (linked net biographies)
Lives, The Biography Resource (similar, but larger)
Jack Tourette's biographical collection (26,000 +)
Croatian Entomological society Biographies (partly finished)

Biografisch Woordenboek van Nederland (covering period 1850-2000; 1863 biographies)

Portrait Galleries:
Galleries of Malacologists (Vanna Rotolo)
Gallery of Malacologists (Kevin S. Cumming)
Lefalophodon home page

Bibliographical databases (may have dates of authors):
Academy of Natural Sciences in Philadelphia
The Circuit
American Museumm of Nat. Hist.
Natural History Museum, London
Smithsonian Institution Library
History of Oceanography
Allan Hancock Library of Biology and Oceanography

Other links to organism name sites
Curiosities of Biological nomenclature
Doug Yanega's curious Scientific Names
Index to Organism Names
IPNI (the International Plant Names Index)
Fishbase
Anemooon (a Dutch marine resource at the Leinden Museum - mainly mollusks - thanks to Dr. Godfried van Moorsel!)

Obituaries
The International Who's Who

Google
Alta Vista (advanced)

Old Natural History literature
Kurt Stüber´s Online Library

Other web pages on this server, e.g.:
TMBL:s home page
Aquascope

Explanations (some terms):
Eponym: a name named for a person; an eponym after a man may also be called a patronym and after a woman (derived from womb man) a matronym.
Toponym: a name named after a place.
Aptromym: a name, which is aptly suited to its owners profession.
Charactonym: a name well suiting a person's personality.
Exonym: a name used by foreigners but differing from the native name, e.g. Naples, which people from Italy call Napoli (and the original Greek inhabitants used the name Neapolis, meaning the new city).
Tautonym: a biological binomen, where the specific name is identical to the generic.