Here is some more:

Name:Isonade Sanbi
Jinchuuriki: Hoshigaki Kisame?
Tale in the Legend of the Tailed Beasts: Isonade is a shark shaped Bijuu with a sharp horn on the forehead. It lives in the deep waters on the West of Japan, fighting pirates. Every few months, Isonade will swim to the surface of the sea from the deep waters, to breath some fresh air. However, when he does this, storms erupt, oceans rage, and all ships will be swallowed by him as food. Isonade has a subordinate fish called Samehada (same name as Kisame's Sword). Depicted differently, but with same pronunciation). Samehada attaches itself to Isonade’s stomach, and absorbs its food to create huge amounts of chakra, proceeding to send it back to its body. Samehada’s power can enable Isonade to get 5 times the quantity of chakra it could originally get. Therefore, when Isonade battles, he will have unlimited chakra to receive from Samehada.
Situation in the Ancient War of the 9 Gods: Battled 4 times; 2 Wins, 1 Loss, 1 Flee
Wins: Kaku, Shukaku
Losses: Nekomata
Escapes: Yamata no Orochi
Fate: A fisherman and brave warrior from Yokohama, called Takuma Muramasa, sacrifices himself in behalf of two villages in a courageous act, getting near Isonade and sealing his personal servant Samehada in the “Tool of Power: Pot of the Shark-named fish” from seal in the Water Shrine. Isonade then becomes unable to draw the massive chakra, and ends up getting exausted and sucked by the Tool’s seal in the Water Shrine as well.
Japanese Myth Appearance: A big shark/fish? with 3 tails and 3 fins. Has a dark blue body color, is attracted by blood (like all sharks); has a personal servant, a small fish named Samehada, as shown above, that is responsible to help Isonade absorb and digest Chakra in 5 times his original capacity.
Ability: Generic water powers, can control the currents of water.
Bijuu Strength Ranking: 6th
Bijuu Chakra/Stamina Ranking: 7th
Symbolic Element: Water (God of Water)
Origin / Discovered in: Four Nanju Country Islands - Yawagawa Sea Area (Nanju is Kisame's ring character)

Name:Sokou Yonbi
Jinchuuriki: Akasuna no Sasori?
Tale in the Legend of the Tailed Beasts: Sokou is a bijuu that looks like a reptile. It was a creature that lived near Mount Fuji. Because of the toxic gas and the volcaninc ash, he was transformed into a half-rooster, half-snake monster. The Rooster and Snake are husband and wife in Sokou’s body. Everything around it withers away or dies, because of its poison. According to the Legend, whenever he hibernates in Mount Fuji, the snoring he causes will make the volcano erupt.
Situation in the Ancient War of the 9 Gods: Battled 4 times; 3 Losses, 1 Flee
Losses: Shukaku, Kaku, Houkou
Escapes: Raijuu
Fate: Sokou was sealed by a master of demonic arts, called Yamazaki Ishiro, with the “Tool of power: Netted Moon Cage” to the seal in the Mount Fuji’s base. Sokou becomes unable to send out his poisonous gas from the mountain for all eternity.
Japanese Myth Appearance: A four-tailed Rooster / Snake mixture. The lower part of the body is a Snake, while the upper part is a Rooster. Crawls instead of walking (Just like desert scorpions *Hiruko!Sasori*). Most of the body parts have an orange tone. Lives in the mount Fuji.
Ability: Controls poison, poisonous gas, venoms, and so on.
Bijuu Strength Ranking: 9th
Bijuu Chakra/Stamina Ranking: 6th
Symbolic Element: Poison
Origin / Discovered in: Close to Tokyo, Mount Fuji.
More info about Sokou:
If you remember, Sokou is the oriental counterpart of the folklore creature Cockatrice. Sokou doesn’t have wings like it, though.

Name:Houkou Gobi
Jinchuuriki: Uchiha Itachi?
Tale in the Legend of the Tailed Beasts: Houkou is a bijuu which looks like a five-tailed dog. Each tail of this creature represents one elemental power: Wind, Water, Earth, Lightning and Fire. They can cause catastrophic damage when used. Houkou will willingly destroy the nature to obtain the power he desires from these elements. He was once badly injured when he and Nekomata challenged Kyuubi. Strangely enough, he is the god of Illusion. Houkou lives in a giant, ancient tree.
Situation in the Ancient War of the 9 Gods: Battled 4 times; 3 Wins, 1 Loss
Wins: Sokou, Nekomata, Raijuu
Losses: Kyuubi
Fate: After receiving a severe wound, Houkou runs away to one of Japan's islands, and hides in a place near Kyushu’s Volcano - a giant tree, to heal his wound. But the tree's concrete position is not known by anyone.
Japanese Myth Appearance: A species of dog, with 5 long tails. Has a white coloured body. Each of the tails possess one of the five elemental powers, that used simultaneously can cause a big earthquake.
Ability: Attacking using mixture of elements; Houkou is skilled in each kind of element ability, and can also create instantaneously each kind of natural disaster.
Bijuu Strength Ranking: 3rd
Bijuu Chakra/Stamina Ranking: 5th
Symbolic Element: Illusion (Being the god of Illusions)
Origin / Discovered in: Near one of Kyushu’s volcanoes (Akase Lava Volcano, probably)

Name:Raijuu Rokubi
Jinchuuriki: Uchiha Madara (Akatsuki Leader?)
Tale in the Legend of the Tailed Beasts: Raijuu, a bijuu in the form of weasel, has four legs and very sharp claws. Its cry sounds like thunder. It was originally the god of Thunder, but because of Yamata no Orochi’s power, it was transformed into a beast. Raijuu can release a huge amount of eletricity for battle assistance.
Situation in the Ancient War of the 9 Gods: Battled 5 times; 2 Wins, 3 Losses
Wins: Shukaku, Sokou
Losses: Houkou, Yamata no Orochi, Kyuubi
Fate: A ninja called Sarutobi (That’s right, but we don’t know if it’s the series’ Sandaime), in the legend, effectively eliminated Raijuu by using the technique “Kinjutsu: Raikiri”. (Now the confusion starts. This is supposed to be Kakashi’s move, but the way of writing may be different from the actual jutsu, and Kishimoto probably changed this legend to fit the story anyway). What actually happens is that the technique counters the lightning released by Raijuu by cutting it, making the beast receive its own attack, and become severely wounded. (Thus the name lightning edge.) He then is sealed by Sarutobi with the “Tool of Power: Hidden Thunder Prison” into the seal in the Thunder Shrine.
Japanese Myth Appearance: A species of weasel with golden yellow fur. The whole body’s fur grows upright. Its six tails take a lightning shape, just like the ancient God of Thunder.
Ability: Fire caused by lightning, Lightning Thunder, Lightning bolts, Lightning elemental magic arts; Raijuu may also fly about as a ball of lightning / fire.
Bijuu Strength Ranking: 5th
Bijuu Chakra/Stamina Ranking: 4th
Symbolic Element: Lightning (God of Lightning)
Origin / Discovered in: Underground the Thunder Shrine in a town in Kyoto
More info about Raijuu:
Raijuu is also depicted as the companion of Raiden, the Shinto god of lightning. While the demon is generally calm and harmless, during thunderstorms, it becomes agitated and leaps about in trees, fields, and even buildings (trees that have been struck by lightning are said to have been scratched by Raijuu's claws).
Another of its peculiar behaviors is sleeping in human navels. This prompts Raiden to shoot arrows at Raijuu to wake the creature up, thus harming the person in whose belly the demon is resting. Superstitious people therefore often sleep on their stomachs during bad weather. Other legends say that Raijuu will only hide in the navels of people who sleep outdoors.

~Shukaku