Results 191 to 200 of about 10,565 (224)

Elektronenmikroskopische Untersuchungen an den Chordazellen von Petromyzon

Zeitschrift f�r Zellforschung und Mikroskopische Anatomie, 1961
Die Chordazellen von 30–40 cm langen Neunaugen (Petromyzon) wurden nach Osmium- und Kaliumpermanganatfixierung elektronenmikroskopisch untersucht. Das Chordaepithel (Chordoblasten) hat ein stark ausgepragtes endoplasmatisches Retikulum mit Paladegranulabesatz, das an das Ergastoplasma von eiweissezernierenden Drusenzellen erinnert.
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Petromyzon, n.

2023
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Petromyzon Linnaeus, 1758, gen. nov.

Petromyzon [gen. nov.] Spiracula VII ad latera colli Fistula in vertice. Pinnae pectorales aut ventrales nullae.
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Petromyzon branchialis Linnaeus, 1758, spec. nov.

Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 230, DOI: 10.5962/bhl.title.542, http://zenodo.org/record ...
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On the Teeth of Petromyzon and Myxine

Journal of Cell Science, 1902
ABSTRACT Those observers who regard the Cyclostomata as a degenerate offshoot from a gnathostome ancestor would naturally desire to look upon the horny teeth as degenerate structures, and they would endeavour to find in them remains of parts homologous to those of an ordinary vertebrate tooth.
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Petromyzon marinus Linnaeus, 1758, spec. nov.

Petromyzon marinus [spec. nov.] P. ore intus barbato, pinna dorsali posteriore a cauda distincta. Art. gen. 64. syn. 90. Petromyzon maculosus, ordinibus dentium circiter viginti. Bell. pisc. 76. Mustela s. Lampetra. Gesn. pisc. 590. Mustela s. Lampetra. Rond. pisc. 398. Will. icht. 105. Raj. pisc. 35. Lampetra. Habitat in Mari Europaeo.
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Petromyzon fluviatilis Linnaeus, 1758, spec. nov.

Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 230, DOI: 10.5962/bhl.title.542, http://zenodo.org/record ...
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Sequencing of the sea lamprey (Petromyzon marinus) genome provides insights into vertebrate evolution

Nature Genetics, 2013
Jeramiah J Smith, Shigehiro Kuraku, Carson Holt   +2 more
exaly  

The brain of petromyzon

Journal of Comparative Neurology, 1902
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The Problem of the Petromyzon Labyrinth

ORL, 1948
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