For the creature evolving game by ~Amoeba-like-thingy

So, I choose the Shellfort (dig around in my gallery a bit) to be my starting creature and here's the evolution line of it....well, so far. I'll keep it updated.

SHELLFORT:
The Shellfort is one of the endangered spieces and also amongst one of the oldest creatuses on Earth.
It has an odd round body, which is covered with a large multilayered shell made out of chitin. The little creature feeds mainly on plants, but it can eat anything that fits under its belly. It has about 400 legs underneath its stomach designed for movement, but which are also used for grabbing it food and digging.
The Shellfort digs mainly straight down by using its many feet as miniature spades. It can also dig straight foward using the chitine plates on its forehead as a pickaxe, but that method is fairly slow.
Shellfort doesn't have any natural enemies due to its ability to survive even when an elephant steps on it, but it will die when flipped over since it is unable to flip over again.

Attack: 1
Defence: 4
Agility: 2
Size: 2
Intelligence: 1
Mobility: Terrestial
Primary habitat: Desert
Secondary habitats: Temperate forests and grasslands

>>>>>>>>>

STRIDER:
Unlike Shellfort, Striders are unable to dig but they have far greater agility than their hovercraft-ish counterparts. That is thanks to the fewer, longer and shorter legs so that they are no longer an immobile prey stuck in the grass.

Attack: 1
Defence: 5 ₊₁
Agility: 4 ₊₂
Size: 3 ₊₁
Intelligence: 1
Mobility: Terrestial
Primary habitat: Grasslands
Secondary habitat: Temparate forests and desert


------------------------
RAGNAR

The first in the line to actually be able to flex its body (in a limited manner, but still) thanks to the two-part body. Ragnar's mouth has also moved upwards, thus showing it more if viewed from above.

Attack: 2 ₊₁
Defence: 6₊₁
Agility: 5 ₊₁
Size: 4 ₊₁
Intelligence: 1
Mobility: Terrestial
Primary habitat: Grasslands
Secondary habitat: Temparate forests and desert


------------
ROYAS

Descendent of the Ragnar, Royas has three-part body giving plaenty of additional mobilit and stroner and sharper legs which have turned out to be a painful weapon for thos they are turned against.

Attack: 4 ₊₂
Defence: 6
Agility: 6 ₊₁
Size: 4
Intelligence: 2 ₊₁
Mobility: Terrestial
Primary habitat: Temparate forests
Secondary habitat: Grasslands and desert