LM of the tail of a lancelet,Branchiostoma sp
Numéro d’image : 11911946
| Light micrograph of the tail of a lancelet,Branchiostoma sp.,(formerly known as Amphioxus sp.),showing its spinal cord (central band). Lancelets are primitive,fish-like marine animals,included in the chordates. They are important in evolution as a specialised descendant of the line that gave rise to the vertebrates. They have no skull,vertebral column,centralised brain nor paired limbs,but there is a notocord (a supportive rod,the precursor of the backbone),tail and a number of gill slits. The body is laterally compressed and tapers like a lance at both the front & rear end. Magnification unknown | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Nuridsany, Claude / Perennou, Maria |
| Taille de l’image : | 3744 px × 2436 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : |
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