MICRO*SCOPE   Taxonomic classification according to arcella.nl (Siemensma, F. J., Microworld, world of amoeboid
  organisms. World-wide electronic publication, Kortenhoef, the Netherlands) for amoeboid organisms
  or Encyclopedia of Life for all others.
    Eucaryota : Opisthokonta : Metazoa : Cnidaria : Hydrozoa : Hydroidolina : Anthoathecata : Aplanulata : Hydridae
 
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Hydra viridissima

The optical cross section through the hydra body shows all three types of their cnidae: some penetrant nematocysts showing shaft and coiled hollow tubule for transportation of the toxin into the prey, some more volvent spirocyst and one glutinous ptychocysts.

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Scale bar indicates 25 µm. Sample from a tropical freshwater aquarium. Sampling date 1/2023. The image was built up using several photomicrographic frames with manual stacking technique. Images were taken using Zeiss Axioplan with Olympus OM-D M5 MKII.

Image under Creative Commons License V 3.0 (CC BY-NC-SA).

Place name: Tropical freshwater aquarium  
 
Latitude: 54.3018013     Longitude: 10.07120132
 




Der optische Querschnitt durch den Hydra-Körper zeigt alle drei Arten ihrer Cniden: einige Nesselkapseln (penetrante Nematocysten) mit Schaft und aufgewickeltem Hohlfaden für den Transport des Giftes in die Beute, mehrere Volventen (Wickelkapseln) und eine Glutinante mit Haftfaden.

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Multiebenen-Abbildung, manuell gestapelt. Der Messbalken markiert eine Länge von 25 µm.

Probe aus einem Süßwasseraquarium. Datum der Aufsammlung: 1/2023. Mikrotechnik: Zeiss Axioplan, Kamera: Olympus OM-D M5 MKII.

Creative Commons License V 3.0 (CC BY-NC-SA).  
 


 
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Multi-layer image (DOF)
 
   
Hydra viridissima
 
       
   
  © Wolfgang Bettighofer 2010–2023