Shenron (AKA "Manda 2")
Physical features: Through this picture from manga chapter 513 we can clearly see that he has several updates from the original Manda. He now possesses the head of a cobra, example being the hood, and the venom spitting reservoir in his mouth (no venom will be included in this snake). The body of this new manda seems to have 5 toed dragon-like talons. And the tail tip of a rattle snake.
Through this picture, Kabuto indicates 3 new things about this snake.
1. Bigger. The original Mandas size is 328,000 feet long and 100 meters thick according to Narutopedia. Thus making this new Manda extremely long, and thick. For the purpose of estimation, we will say at least 350,000 ft long and 200 meters thick.
2. Stronger. The original Manda stood up to all kinda of attacks. It took the power of Deidara's C-0 to kill Manda the thought of this snake being stronger would mean that he could take a blast from C-0 and be ok still. Its massive strength was shown that, even in the water, it slowed down the Giant Island Turtle with ease, yanking
3. Better senses. Manning this snake can feel and smell every movement on the battle field.
This snake obviously has everything Manda had and more. Meaning he can speak. Along with all of Mandas other abilities. This snake is also submissive enough do to Kabutos cloning process to be able to be taught to any holder of the snake contract. But only by Scarface.