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Invertebrate Brain Gallery

Many invertebrate animals have evolved a rich variety of brains (head ganglia). Unusually large brains of squids and octopuses and small but sophisticated brains of arthropods, especially those of insects, are among the most fascinating brains created on earth by natural selection. Here, photographs of invertebrates of 6 phyla, 35 orders and 47 species and those of their central nervous systems are presented, with brief explanations of their characteristics. Enjoy seeing the pictures and consider evolution of brains in invertebrates. These images can be only used for research and education freely. Providers (Dr. Makoto Mizunami) have copyright for images and documents.

Mantis shrimps Back to the top page of brain gallery
syako.jpg
syako_nou.jpg
syako_zen.jpg
Author Comment
Kuramochi
2006-04-12
18:11
Mantis shrimp/Squilla oratoria
Body length: 17 cm.
In Japanese cuisine, the mantis shrimp is eaten as sashimi and as a sushi topping, and is called shako. These aggressive and typically solitary sea creatures spend most of their time hiding in rock formations or burrowing intricate passageways in the sea-bed. They wait for prey to chance upon them or, unlike most crustaceans, actually hunt, chase and kill living prey.
The circumesophageal nerve ring, which consists of the brain in the anterior and subesophageal ganglion in the posterior, 3 thoracic ganglia and 6 abdominal ganglia are connected in line by a pair of connectives. The brain is divided into several regions, sending optic nerves and antennal nerves according to the regions.


Infomation

ID36
AuthorKuramochi
Date2006-04-12
SeqB01
Views5225
Keyword

Arthropoda
  • Crustacea
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