Blue World/Fauna & Flora/Fauna D

Dasoku
The Dasoku, or Centipede Snake is a creature developed by the Golden Lion Pirates' doctor Indigo using the SIQ for Shiki's plan to overthrown the World Government by destroying the East Blue. It is a giant purple snake with hair on its back, a tail and ten feet.

Del Kong
The Del Kong is a creature developed by Dr. Indigo using the chemical SIQ for Shiki's plot to use monstrous creatures to attack East Blue to force the World Government to submit to him. It is a giant gorilla with brown colored fur. Its face and ears are violet, and his fangs are notably out of his mouth, the front of its arms are large.

Den Den Mushi
Den Den Mushi are snails that are usually seen with phones or fax machines attached to their shells. They have the ability to communicate with each other through radio waves. The people of the Blue World take advantage of this ability by attaching buttons and receivers to them. Den Den Mushi thus take the place of telephones and other similar machines in One Piece. They are classified as type "B" creatures being "Small Friendly".

When a person speaks through a Den Den Mushi, the Den Den Mushi will mouth the person's speech and display the person's emotions. For example, when someone screams, the snail will scream as well. Den Den Mushi are usually active when someone answers the phone, but once they are hung up, they go to sleep. Despite acting like machines, they are actually animals. Since being raised by humans gives them access to plenty of food, Den Den Mushi don't mind being used and tamed. However, they don't work in extreme cold.

Types
The Den Den Mushi can come out in many many styles based on where they are and who owns them. For example, marine Den Den Mushi have the marine symbol painted on their face or on their shell. Despite their varied appearances, there are, however, general specific groups for each and every Den Den Mushi.

Regular Den Den Mushi
The most common type of Den Den Mushi commonly seen. They are too big to carry around, but their signal range is much further than that of a baby. They can also serve as fax machines if the right accessory is attached. They are capable of making long distance calls, and many are large enough to make a worldwide signal.

Baby Den Den Mushi
A Baby Den Den Mushi is a fairly small and portable Den Den Mushi, enough to fit in one's palm. It's good for keeping in contact with fellow comrades in the same area, but incapable of inter-island calls. They can also be used as speakers, in which to broadcast the user's voice throughout the area.

Black Den Den Mushi
A Black Den Den Mushi is a type of Den Den Mushi used commonly by the Marines, as listening devices or "wiretaps", to intercept calls between pirates or other miscreants. They are actually a different type of species compared to other types of Den Den Mushi. They do not grow as they age and remain a small portable size for the rest of their lives. They enjoy eavesdropping, and dislike communicating with others. Their abilities to intercept can be blocked by their counterpart, the White Den Den Mushi.

Golden Den Den Mushi
The Golden Den Den Mushi is a special kind of Den Den Mushi which only held by the Marine Admirals. Used to summon the Buster Call attack. The Den Den Mushi is immobile and its entire body appears to be made out of gold.

It is a very rare type of Den Den Mushi. After the button on its back is pressed, it sends a message straight to the Silver Den Den Mushi, telling the Marines to start the Buster Call.

So far in the series, it has only been shown to be used twice: once by Spandine on the Island of Ohara, and again, 20 years later, by Spandam with licence from Admiral Aokiji. Spandine's use of it was intentional, although Spandam's was not; he used the Golden Den Den Mushi by accident because he thought it was a Baby Den Den Mushi.

Silver Den Den Mushi
The Silver Den Den Mushi is a special type of Den Den Mushi, used as an alarm to alert the Marines through the Golden Den Den Mushi's Buster Call request. It is depicted as a silver snail that is bearded and old-looking. It has a shell that appears to be made of solid silver. The snail is generally calm when nothing happens. However, when it receives a Buster Call signal from a Golden Den Den Mushi, it gives off a loud vibrating sound that alerts any and every Marine nearby.

Surveillance Den Den Mushi
The Surveillance Den Den Mushi is a type of Den Den Mushi that acts as a video camera. They come in two sizes. The small Surveillance Den Den Mushi are mounted in specific locations around a building with an alarm connected to the shell. They are all connected to a larger Surveillance Den Den Mushi that is able to pick up the signals. These large ones are connected to a machine which produces video feeds to a set of monitors.

Visual Den Den Mushi
The Visual Den Den Mushi is similar to the Surveillance Den Den Mushi, and it broadcasts what the Den Den Mushi sees to a bigger video screen. The smaller Den Den Mushi (which seems to be larger than the Surveillance variation) are used as the cameras, while the larger ones are linked to the screens to receive the signals. These visual versions seem to be able to broadcast their frequencies between two relatively close islands.

Self-Propelled Visual Den Den Mushi
Shiki has a variant of the Visual Den Den Mushi called the Self-Propelled Visual Den Den Mushi. As the name implies they are able to move and look around. They also appear to be close to the same size as the larger variant of the Visual Den Den Mushi and have attachments that allow them to project what they can see to a monitor.

White Den Den Mushi
The White Den Den Mushi can be attached to other Den Den Mushi and send out psychic waves that prevent interception; in a way, they are an opposite to the Black Den Den Mushi. They are rare and one was first seen used by Monkey D. Dragon to communicate with Emporio Ivankov.

Don Kamakiriri
Don Kamakiriri is a creature developed by Dr. Indigo using the chemical SIQ for Shiki's plot to use monstrous creatures to attack East Blue to force the World Government to submit to him.

A looming wicked cutter, this dangerous guy is always angry. He has extraordinary arm scythes, these fearful blades can cut and tear through nearly anything, demonstrated by cutting through solid stone with extreme ease.