The Sarikoli language (also Sariqoli, Selekur, Sarikul, Sariqul, Sariköli) is a member of the Pamir subgroup of the Southeastern Iranian languages spoken by Sarikoli Pamiri people. It is officially referred to in China as the "Tajik language", although it is different from the related Iranian language spoken in Tajikistan, which is considered a dialect of Persian. Nomenclature Sarikoli is officially referred to as "Tajik" (, Tǎjíkèyǔ) in China. However, it is not closely related to Tajik (a form of Persian) as spoken in Tajikistan because Sarikoli is an Eastern Iranian language, closely related to other Pamir languages largely spoken in the Badakshan regions of Tajikistan and Afghanistan, whereas the Western Iranian Farsi-Dari-Tajik is a polycentric language of a related but distinctly and historically different type. Both of these types of language and dialect clusters have been geographically separated by great distances and mountainous terrain over the course of long periods of time during which many differences of pronunciation, wording and xenolinguistic borrowings or retention of older forms or word choices accumulated over time. It is also referred to as Tashkorghani, after the ancient capital of the Sarikoli kingdom -- now the Tashkurgan (or Taxkorgan) Tajik Autonomous County in Xinjiang, China. However, the usage of the term Tashkorghani is not widespread among scholars. The earliest written accounts in English are from the 1870s which generally use the name "Sarikoli" to refer to the language, but some written accounts since that time may use a different pronunciation derived from transcribing Chinese phonetics of the term into English as "Selekur(i)". Modern Chinese researchers often mention Sarikoli and Tajik names in their papers. Distribution of speakers The number of speakers is around 35,000; most reside in the Taxkorgan Tajik Autonomous County in Southern Xinjiang Province, China. The Chinese name for the Sarikoli language, as well as the usage of Sarikol as a toponym, is Sàléikuòlèyǔ (). Speakers in China typically use Chinese and Uyghur to communicate with people of other ethnic groups in the area. The rest are found in the Pakistani-controlled sector of Kashmir, closely touching the Pakistan-Chinese international borders. Writing system The language has no official written form. Linguist Gāo Èrqiāng, publishing in China, used IPA to transcribe the sounds of Sarikoli in his book and dictionary, while Tatiana N. Pakhalina, publishing in Russia, used an alphabet similar to that of the Wakhi language in hers. The majority of Sarikoli-speakers attend schools