Bisoid languages

The Bisoid (Phunoi) languages belong to the Southern Loloish (Hanoish) branch of the Sino-Tibetan language family. Most Bisoid languages are spoken in Phongsaly Province, northern Laos, with smaller numbers of speakers living in China (Yunnan), Vietnam (Lai Châu Province), Myanmar (Shan State), and northern Thailand.

Languages
The Bisoid languages are:


 * Bantang
 * Bisu (mBisu, Pisu)
 * Cantan
 * Cauho
 * Cốông
 * Habei (Mani)
 * Khongsat (Suma)
 * Laomian
 * Laopan
 * Laopin
 * Laoseng
 * Phongku (Phu Lawa)
 * Phongset
 * Phunoi
 * Phunyot
 * Pyen (Phen)
 * Sangkong
 * Sinsali (Singsili)
 * Tsukong

Bradley (2007)
David Bradley (2007) considers the following Bisoid dialects to be closely related.
 * Bisu: 500 ethnic members in northern Thailand, with far fewer speakers
 * Hpyin (Pyen): already reported as moribund in 1900, and replaced by Lahu
 * Laomian: 4,000 speakers (out of 5,000 ethnic members) in central Lancang County
 * Laopin: fewer than 1,000 speakers (out of 1,300 ethnic members) in Menghai County
 *  (Lao-Pan in Kingsada (1999))

Bradley (2007) lists the following Sinsali (formerly Phunoi) languages, which differ from each other.
 * Sinsali proper
 *  (Phongku in Kingsada (1999))
 *  (Laoseng in Kingsada (1999))
 *  (Bisu)

Other Bisoid languages include:
 * Phongset () (Shintani 2001)
 * Phunyot () (Kato 2008)

Udomkool (2006)
Kitjapol Udomkool (2006:34), citing data from Wright, also lists the following Bisoid (Phunoi) languages.
 * Tsukong [] (China): close to Cốông
 * Cauho [] (Laos): divergent
 * Bantang [] (Laos): divergent
 * Cantan [] (Laos): close to Sinsali

Kitjapol Udomkool (2006) gives the following computational classification for the Bisoid (Phunoi) group, using the UPGMA method.

Wright (n.d.)
Wright (n.d.) tentatively classifies the Singsali (Phunoi) languages of Phongsaly Province, Laos as follows. Phongku may or may not belong as the same group as Laoseng, Phongset, Cantan, and Singsali.


 * Bantang
 * Cauho
 * Laopan
 * Phongku (?)
 * Laoseng
 * Phongset
 * Cantan, Singsali
 * Cantan, Singsali

Hsiu (2016, 2018)
Bisoid languages were also analyzed in a 2016 computational phylogenetic lexical analysis by Hsiu (2016).


 * Bisoid
 * Khongsat
 * Laoseng
 * Sangkong
 * Pyen
 * Lao-Pan
 * Bisu
 * Phunoi
 * Phongset
 * Phongku (Phu-Lawa)
 * Phunyot
 * Phunyot

The Bisoid classification above was subsequently revised by Hsiu (2018) as follows, with Habei added to Bisoid.
 * Bisoid
 * Bisu cluster: Bisu, Laomian, Laopin, Pyen, Laopan
 * Singsali cluster: Phunoi, Singsali, Cantan, Laoseng, Phongku, Phongset, Phunyot
 * Coong cluster: Cốông, Sangkong, Tsukong
 * Cauho
 * Bantang
 * Khongsat
 * Habei (Mani)

Muda is also noted as having a Bisoid substratum and Akha superstratum. Khongsat and Laoseng have Siloid loanwords.