I have this information, but do not know its source -
Tomari-Te was developed out of the Shuri-Te style of karate and was indicative of the karate practiced in and around the Tomari village near Shuri. The differences between the two styles is slight. There were several Chinese visitors to the Tomari region that did not reach Shuri. These teachings did not originally influence Shuri-Te but later an exchange in ideas and katas did take place. Many kata became part of both styles. There were several kata, however, that are unique to Tomari-Te. These were Wansu, Rohai, and Wankan. In addition, though the exact origin of Ananku is unknown, it is believed that Chotoku Kyan (1870-1945) brought back this form from Taiwan in the year 1895. There are others that are said to have existed but have been lost.
The Tomari-Te style was started through the efforts of Karate Sakugawa (1733-1815). The intital kata used was a version of Kusanku. The teachings of the style were carried on through Makabe Chokin (c. 1785). Infuences from South China (Chinto) and students of Chokin expanded the forms used by the Tomari-Te school. The unique kata Wansu, Rohai and Wankan appear to have existed solely in the Tomari-Te system until the 1870's. Yasutsune Itosu (1830-1915) is said to have developed the Shodan, Nidan, and Sandan versions of the Rohai kata. One of the later day teachers of the Tomari-Te style is Shoshin Nagamine (b. 1907). His Matsubayashi Ryu style encompasses many of the Tomari-Te versions of Shuri-Te kata, as well as, the unique Tomari-Te kata including: Pinans, Wankan, Ananku, Gojushiho, Rohai, Wanshu, Passai, Naihanchi, Kusanku and Chinto.
And this bit I have added -
It is also worth noting that OSensei Nagamine shows three key influences in his karate, Kyan, Motobu and Arakaki (discussed in detail in his book) - all three practioners of tomari te karate to a geater extent.
So there you have it ! Matsubayashi Ryu is Modern Tomari te, interesting..............