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The effect of holothurin on leucocyte migration
Vol 56, Iss 1, Page 1
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Species identification of commercial crocodilian skins
Vol 56, Iss 2, Page 15
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Crocodylus intermedius Graves, a review of recent literature
Vol 56, Page 71
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Inheritance of melanophore patterns and sex determination in the Montezuma swordtail, Xiphophorus montezumae cortezi Rosen
Vol 56, Iss 3, Page 77
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Eastern Pacific Expeditions of the New York Zoological Society. Stomatopod Crustacea
Vol 56, Iss 4, Page 95
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On the resemblance of the young of the fishes Platax pinnatus and Plectorhynchus chaetodontoides to flatworms and nudibranchs
Vol 56, Iss 5, Page 115
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Chromosome numbers of heliconiine butterflies from Trinidad, West Indies (Lepidoptera, Nymphalidae)
Vol 56, Iss 6, Page 121
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The genetics of some polymorphic forms of the butterflies Heliconius melpomene (Linnaeus) and H. erato (Linnaeus). II. The hybridization of subspecies of H. melpomene from Surinam and Trinidad
Vol 56, Iss 7, Page 125
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Underwater sounds of southern right whales
Vol 56, Page 159
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The heliconians of Brazil (Lepidoptera: Nymphalidae). Part II. Introduction and general comments, with a supplementary revision of the tribe
Vol 57, Iss 1, Page 1
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The heliconians of Brazil (Lepidoptera: Nymphalidae). Part III. Ecology and biology of Heliconius nattereri, a key primitive species neat extinction, and comments on the evolutionary development of Heloconius and Eueides
Vol 57, Iss 2, Page 41
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The hematological parameters and blood cell morphology of the brown bullhead catfish, Ictalurus nebulosus (Le Sueur)
Vol 57, Iss 3, Page 71
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Histochemical analyses of the fluid and the solid state of the adhesive materials produced by the pre- and postmetamorphosed Cyprids of Balanus eburneus Gould
Vol 57, Iss 4, Page 79
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Blood-group activity in baboon tissues
Vol 57, Iss 5, Page 97
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Captive breeding of orangutans
Vol 57, Iss 6, Page 105
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Captive propagation: A progress report
Vol 57, Iss 7, Page 109
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Status of rare and endangered birds in captivity with a general reference to mammals
Vol 57, Iss 8, Page 119
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Venom yields of the Philippine cobra, Naja naja Philippinensis
Vol 57, Iss 9, Page 126
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Daily activity patterns and effects of environmental conditions on the behavior of the yellowhead jawfish, Opistognathus aurifrons with notes on its ecology
Vol 57, Iss 10, Page 137
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Preliminary report: Status investigations of Morelet's crocodile in Mexico
Vol 57, Page 135