Field Guide and Catalogues

Observations on the biology, ecology, behavior, and larvae of Dryobius sexnotatus Linsley (Coleoptera: Cerambycidae)

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Observations on Mr. Donisthorpe's "Guests of British ants, chapter XII. Pseudoscorpiones".

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Observations on food, enemies and parasites of British harvest-spiders (Arachnida, Opiliones)

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Observations in natural history

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Observations écologiques en forêt de Basse Côte d'Ivoire

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Observations écologiques dans l'état de New Jersey (États-Unis)

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Observations concerning the Mexican free-tailed bat, Tadarida mexicana, in Texas

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[Observation on the nest of Japanese pseudoscorpions]

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Observações preliminares sobre o ecossistema da gruta Olhos d'Agua, Itacarambi MG

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Observaciones sobre el Chelonops coecus Gerv.

Joseph, H.C., 1927. Observaciones sobre el Chelonops coecus Gerv. Revista Chilena de Historia Natural, 31, p.53-56.

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Observations on the biology, ecology, behavior, and larvae of <i>Dryobius sexnotatus</i> Linsley (Coleoptera: Cerambycidae)

Observations on Mr. Donisthorpe's "Guests of British ants, chapter XII. Pseudoscorpiones".

Observations on food, enemies and parasites of British harvest-spiders (Arachnida, Opiliones)

Observations in natural history

Observations écologiques en forêt de Basse Côte d'Ivoire

Observations écologiques dans l'état de New Jersey (États-Unis)

Observations concerning the Mexican free-tailed bat, <i>Tadarida mexicana</i>, in Texas

[Observation on the nest of Japanese pseudoscorpions]

Observações preliminares sobre o ecossistema da gruta Olhos d'Agua, Itacarambi MG

Observaciones sobre el <i>Chelonops coecus</i> Gerv.

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