- Abhandlungen der Mathematisch-Physikalischen Klasse der Königlich Bayerischen Akademie der Wissenschaften
- Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft
- Abhandlungen des Zoologisch-Mineralogischen Vereines in Regensburg
- Abhandlungen und Berichte des Naturkundemuseums Görlitz
- Acarina
- Acarologia
- Acarologie
- Acarology bulletin [newsletter]
- Acta amazonica
- Acta arachnologica
- Acta arachnologica sinica
- Acta biológica paranaense
- Acta biologica silesiana
- Acta biologica Szegediensis (new series)
- Acta biológica venezuelica
- Acta Botanica Fennica
- Acta Botanica Venezuelica
- Acta Científica Venezolana
- Acta chiropterologica
- Acta coleopterologica
- Acta entomologica bohemoslovaca
- Acta entomológica chilena
- Acta entomologica fennica
- Acta Entomologica Musei Nationalis Pragae
- Acta entomologica sinica
- Acta entomologica slovenica
- Acta geologica leopoldensia
- Acta Geologica Polonica
- Acta geologica sinica - English edition
- Acta hydrobiologica sinica
- Acta micropalaeontologica sinica
- Acta Musei Moraviae, scientiae biologicae
- Acta Musei Richnoviensis Sect. Natur.
- Acta Musei Nationalis Pragae, Series B – Historia Naturalis
- Acta oecologica
- Acta palaeontologica polonica
- Acta palaeontologica sinica
- Acta parasitologica
- Acta parasitologica et medica entomologica sinica
- Acta parasitologica polonica
- Acta phytopathologica et entomologica hungarica
- Acta Phytotaxonomica Sinica
- Acta Societatis Zoologicae Bohemicae
- Acta Societatis Zoologicae Bohemicae
- Acta Universitatis Carolinae - biologica
- Acta zoologica
- Acta Zoologica Academiae Scientiarum Hungaricae
- Acta Zoologica Academiae Scientiarum Hungaricae [n.s.]
- Acta zoologica bulgarica
- Acta zoologica cracoviensia
- Acta zoologica cracoviensia
- Acta zoologica cracoviensia (B)
- Acta zoologica fennica
- Acta zoologica hungarica
- Acta zoológica lilloana
- Acta zoologica lituanica
- Acta zoológica mexicana (n. s.)
- Acta zoologica sinica
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- Adansonia
- Advances in Marine Biology
- African entomology
- African invertebrates
- African journal of biotechnology
- African journal of herpetology
- African natural history
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- Agriculture, ecosystems & environment
- Alavesia
- Alcheringa
- Algae
- Aliso
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- Abhandlungen und Berichte des Naturkundlichen Museums Mauritianum Altenburg
- Altenburger Naturwissenschaftliche Forschungen
- Alytes
- Amazoniana
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- American bee journal
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- American journal of botany
- American journal of primatology
- American journal of science and arts
- American malacological bulletin
- American midland naturalist
- American Museum novitates
- American Zoologist
- Amphibia-Reptilia
- Amphibian and reptile conservation
- Amphipacifica
- Amurian zoological journal
- Anais da Academia Brasileira de Ciências
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- Anartia
- Animal biodiversity and conservation
- Animal cells and systems
- Animal systematics, evolution and diversity
- Animalia
- animma.x
- Annalen des Naturhistorischen Museums in Wien
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- Annalen van het Museum van Belgisch Congo. C Dierkunde = Annales du Musée du Congo Belge. C, Zoologie
- Annales botanici fennici
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- Annals and magazine of natural history
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- Annals of the Entomological Society of America
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- Annals of tropical medicine and parasitology
- Annotationes zoologicae et botanicae
- Annuaire du Conservatoire et du Jardin Botaniques de Genève
- Annual review of entomology
- Antarctic research series
- Antarctic science
- Anzeiger der Kaiserlichen Akademie der Wissenschaften in Wien, Mathematisch-Naturwissenschaftliche Klasse
- Anzeiger der Österreichischen Akademie der Wissenschaften, Mathematisch-Naturwissenschaftliche Klasse
- Apex
- Aphids and other hemipterous insects
- Apidologie
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- Aqua
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- Aquarien- und Terrarienzeitschrift (DATZ)
- Aquatic insects
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- Arachnologische Mitteilungen
- Arachnology
- Archiv für Molluskenkunde
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- Arctoa
- Arkiv för zoologi
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- Arquivos de zoologia (São Paulo)
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- Arquivos entomolóxicos
- Arthropod-plant interactions
- Arthropoda
- Arthropoda generalis
- Arthropoda selecta
- Arthropod systematics & phylogeny
- Articulata
- Ascomycete.org
- Asia life sciences
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- Asian wild pig news
- Asociación Paleontológica Argentina Publicación especial
- Atalanta
- Atas da Sociedade de Biologia do Rio de Janeiro
- Atoll research bulletin
- Atti della Società italiana di scienze naturali e del Museo civico di storia naturale di Milano
- Atti della Società Toscana die Scienze Naturali Memorie, ser. A
- Auckland Botanical Society journal
- Auk
- Austral ecology
- Austral entomology
- Australasian arachnology
- Australasian journal of herpetology
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- Australian biodiversity record
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- Australian entomologist
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- Australian journal of botany
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- Australian journal of zoology, supplementary series
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- Australian systematic botany
- Australian zoologist
- Austrobaileya
- Avances en Ciencias e Ingenierías
- Avhandlingar Norske videnskaps akademi i Oslo
- Avicennia
