Merriam's notes contain no systematic information on the tribelets of
this group but do give the following miscellaneous data.
Kos-kah-tun-den ka-ah is the Settenbiden name for a related tribelet in
the Blocksburg region [the territory E of Alder Pt.], now extinct. Their
language is the same as that of the Bridgeville group but with many
words different from Settenbiden.
Sa-tahl-che-cho-be is the Settenbiden name for the band on the east
side of the Main Eel River just below the mouth of Kekawaka Creek.
This tribelet is the "sko-den ke-ah" of the Eel River Wailaki. Neither
Merriam nor Goddard was sure whether the group ought not more properly
to be included in the Lassik or the Wailaki.
Taht-so keah is the name of a tribelet to the north of the Eel River
Wailaki which the latter said was related to them. This group, together
with the sa-tahl-che-cho-be, is said to constitute the then-chah-tung
tribelet of the Lassik.