del Instituto de Ciencias Naturales José de Acosta. Serie Biológica, Tomo IV (Joaquín Templado Castaño: El tejido elástico de los Cirrópodos; Dimas Fernández-Galiano: Los sistemas fibrilares de las especies del género Balantidium. II. Ballantidium Entozoon y B. Galianoi; Antonio Arnal: El aparato digestivo de Volucella elegans; Emilio Anadon: Sobre las variaciones volumétricas y de forma del núcleo de las células secretoras del intestino medio del Playstolus Martinezi).

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