954 resultados para Revista La Pluma (1927-1931)


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Historia de la influencia del higienismo en la evolución del espacio escolar de la ciudad de Vitoria entre 1865-1931.

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8 cartas (manuscritas) ; entre 320x210mm y 155x205mm y una tarjeta postal de 145x95mm

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Until now observations on the temporal variation of size of freshwater copepods have not provided much information. Other observers only mention in passing this or that phenomenon from which it is possible to deduct termporal variations. In this study Cyclops strenuus s.l., a freshwater species of fairly wide distribution, is studied in two water bodies. The author studies the systematic, placing of inhabitants described as C. strenuus Fischer in both locations, their annual life cycle, and their annual size variations.

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This is a short excerpt of the original paper giving the key to the identification of the naupliar instars of the genus Cyclops.

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This is a short excerpt of the original paper giving the key to the identification of the naupliar instars of the genus Cyclops.

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Morphological observations on the two types of Pseudospora are given. The two Pseudospora whic are described are Pseudospora eudorini and Pseudospora volvocis. The systematic classification of the genus Pseudospora is discussed.

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Portunus pulchricristatus (Gordon, 1931) is a rare species, to date we have obtained only three specimens, two males and a berried female which can be easily identified with the help of existing descriptions and illustrations. Brief account of the Pakistan material is given below. One male specimen (measuring 11.0 mm in carapace length) has been deposited in the National Museum of Natural History, Leiden (Reg.No.D.42393) the other two specimens housed in the Marine Reference Collection and Resource Centre (MRCC Cat. No.BRAC.491). The abbreviations used are cl. for carapace length and cb. for carapace breadth.