Yintyingka
The Yintyingka of the eastern Cape York Peninsula, often called Sandbeach people, spoke an extinct Middle Paman language closely related to that of the Ayapathu. The two are regarded as coastal and inland dialects of the same language. Recent linguistic work suggests Yintyingka as the name of the dialect earlier labelled identified coastal Ayapathu and as the name of the language of which Ayapathu and Yintyingka are dialects since it avoids ambiguity with the 'structurally different' Western Ayapathu (AIATSIS Y181).
The Yintyingka lived on the coastal plains and savannahs around Port Stewart, with the Umpila to their north, the Ayapathu and Kaantju to their west, and the Umpilthamu, Olkola, and Rimanggudinha to their south.
After the late 1860s, when the rapid development of beche-de-mer and pearling industries began disrupting coastal Aboriginal societies, men, women and children were recruited to work on the luggers, gold rushes, pastoral expansion, and the construction of the Cape York Peninsula telegraph line continued a process of rapid disintegration. As the Native Mounted Police cleared the indigenous estate owners from various districts and the remnant populations became muddled, previous distinctions became blurred. When the male line of the coastal Yintyingka became extinct in the first half of the 20th century, their territorial rights shifted by descent and succession to Port Stewart's Lamalama people.
Sources:
AIATSIS AustLang Project: Yintyingka (Y236)
Bruce Rigsby, Genealogies, kinship and local group composition: Old Yintjingga (Port Stewart) in the late 1920s (PDF). In Finlayson, Julie D.; Rigsby, Bruce; Bek, Hilary (eds.). Connections in Native Title: Genealogies, Kinship and Groups. Centre for Aboriginal Economic Policy Research, 1999. pp. 107–123.
Wikipedia: Yintyingka: https://en.wikipedia.org/wiki/Yintyingka
Missing links:
Middle Paman languages
Western Ayapathu
Port Stewart
Umpilthamu
Olkola
Rimanggudinha
