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Weights and wing-lengths of some Trinidad birds
Vol 48, Iss 1, Page 1
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The reproductive behavior of the green sunfish, Lepomis cyanellus
Vol 48, Iss 2, Page 13
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Studies on the endocrine glands of the salmonoid fish, the ayu, Plecoglossus altivelis Temminck & Schlegel. V. Seasonal changes in the endocrines of the land-locked form, the koayu
Vol 48, Iss 3, Page 25
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The mammals of the Atlantica Ecological Research Station, Southern Rhodesia
Vol 48, Iss 4, Page 33
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The spawning and early development of the Atlantic parrot fish, Sparisoma rubripinne, with notes on other scarid and labrid fishes
Vol 48, Iss 5, Page 49
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Massive aggregations of large rays and sharks in and near Sarasota, Florida
Vol 48, Iss 6, Page 61
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Experimental studies of mimicry. 7. Relative palatability and Müllerian mimicry among neotropical butterflies of the subfamily Heliconiinae
Vol 48, Iss 7, Page 65
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A morphological study of imagine Heliconiinae (Lep.: Nymphalidae) with a consideration of the evolutionary relationships within the group
Vol 48, Iss 8, Page 85
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Spontaneous tuberculosis in fishes and in other cold-blooded vertebrates with special reference to Mycobacterium fortuitum Cruz from fish and human lesions
Vol 48, Iss 9, Page 131
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Some genetic studies of Müllerian mimics in butterflies of the genus Heliconius
Vol 48, Iss 10, Page 145
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The electroretinogram of Heliconius erato (Lepidoptera) and its possible relation to established behavior patterns
Vol 48, Iss 11, Page 155
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The display of the blue-backed manakin, Chiroxiphia pareola, in Tobago, W.I.
Vol 48, Iss 12, Page 167