a larva of the Common Lancelet (Branchiostoma lanceolatum)

Images made through a microscope. All subject types.

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Franz Neidl
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Joined: Wed Jan 14, 2009 11:59 am
Location: Italy

a larva of the Common Lancelet (Branchiostoma lanceolatum)

Post by Franz Neidl »

Several days ego I found this animal in the seaplancton. It was the first time in my life and I was very surprised. Is it a fish or not a fish? I studied my books and I discovered that is a very known animal in all textbooks of biology: the larva of Branchiostoma lanceolatum (syn. Amphioxus) from the Acrania. This animal is an ancestor of the vertebrates and therefore it is studied now a lot in genetics and evolution studies.

Brightfield, objective 4x, 3 pictures.
The third picture is made with polarized light in order to have a better view of the structure (the Neural cord and the Notochord).

Franz Neidl




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Location: Panama

Post by RogelioMoreno »


Very nice, specially the last one.


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Post by Cyclops »

I had never heard of this mini beast, very cool!
Canon 5D and 30D | Canon IXUS 265HS | Cosina 100mm f3.5 macro | EF 75-300 f4.5-5.6 USM III | EF 50 f1.8 II | Slik 88 tripod | Apex Practicioner monocular microscope

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