Sea urchin larva. Light micrograph of a larva of an unidentified sea urchin. Free-swimming echinoderm larvae are known as pluteus larvae. They bear a number of ciliated "arms",sometimes supported by calcareous rods. Unlike adult sea urchins,which have a five-way radial symmetry,pluteus larvae are bi-laterally symmetrical. Magnification: x40 at 35mm size | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Science Pictures |
Taille de l’image : | 3421 px × 2365 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |